diff --git a/package-lock.json b/package-lock.json
index 66d8c48..7889319 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1000,6 +1000,48 @@
             "web3-utils": "1.2.1"
           }
         },
+        "web3-provider-engine": {
+          "version": "git+https://github.com/trufflesuite/provider-engine.git#3538c60bc4836b73ccae1ac3f64c8fed8ef19c1a",
+          "from": "git+https://github.com/trufflesuite/provider-engine.git#web3-one",
+          "requires": {
+            "async": "^2.5.0",
+            "backoff": "^2.5.0",
+            "clone": "^2.0.0",
+            "cross-fetch": "^2.1.0",
+            "eth-block-tracker": "^3.0.0",
+            "eth-json-rpc-infura": "^3.1.0",
+            "eth-sig-util": "^1.4.2",
+            "ethereumjs-block": "^1.2.2",
+            "ethereumjs-tx": "^1.2.0",
+            "ethereumjs-util": "^5.1.5",
+            "ethereumjs-vm": "^2.3.4",
+            "json-rpc-error": "^2.0.0",
+            "json-stable-stringify": "^1.0.1",
+            "promise-to-callback": "^1.0.0",
+            "readable-stream": "^2.2.9",
+            "request": "^2.85.0",
+            "semaphore": "^1.0.3",
+            "ws": "^5.1.1",
+            "xhr": "^2.2.0",
+            "xtend": "^4.0.1"
+          },
+          "dependencies": {
+            "ethereumjs-util": {
+              "version": "5.2.1",
+              "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-5.2.1.tgz",
+              "integrity": "sha512-v3kT+7zdyCm1HIqWlLNrHGqHGLpGYIhjeHxQjnDXjLT2FyGJDsd3LWMYUo7pAFRrk86CR3nUJfhC81CCoJNNGQ==",
+              "requires": {
+                "bn.js": "^4.11.0",
+                "create-hash": "^1.1.2",
+                "elliptic": "^6.5.2",
+                "ethereum-cryptography": "^0.1.3",
+                "ethjs-util": "^0.1.3",
+                "rlp": "^2.0.0",
+                "safe-buffer": "^5.1.1"
+              }
+            }
+          }
+        },
         "web3-providers-http": {
           "version": "1.2.1",
           "resolved": "https://registry.npmjs.org/web3-providers-http/-/web3-providers-http-1.2.1.tgz",
@@ -1053,6 +1095,25 @@
             "underscore": "1.9.1",
             "utf8": "3.0.0"
           }
+        },
+        "websocket": {
+          "version": "github:web3-js/WebSocket-Node#905deb4812572b344f5801f8c9ce8bb02799d82e",
+          "from": "github:web3-js/WebSocket-Node#polyfill/globalThis",
+          "requires": {
+            "debug": "^2.2.0",
+            "es5-ext": "^0.10.50",
+            "nan": "^2.14.0",
+            "typedarray-to-buffer": "^3.1.5",
+            "yaeti": "^0.0.6"
+          }
+        },
+        "ws": {
+          "version": "5.2.3",
+          "resolved": "https://registry.npmjs.org/ws/-/ws-5.2.3.tgz",
+          "integrity": "sha512-jZArVERrMsKUatIdnLzqvcfydI85dvd/Fp1u/VOpfdDWQ4c9qWXe+VIeAbQ5FrDwciAkr+lzofXLz3Kuf26AOA==",
+          "requires": {
+            "async-limiter": "~1.0.0"
+          }
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       }
     },
@@ -1126,6 +1187,14 @@
         "@types/node": "*"
       }
     },
+    "@types/pbkdf2": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/@types/pbkdf2/-/pbkdf2-3.1.0.tgz",
+      "integrity": "sha512-Cf63Rv7jCQ0LaL8tNXmEyqTHuIJxRdlS5vMh1mj5voN4+QFhVZnlZruezqpWYDiJ8UTzhP0VmeLXCmBk66YrMQ==",
+      "requires": {
+        "@types/node": "*"
+      }
+    },
     "@types/prettier": {
       "version": "1.19.1",
       "resolved": "https://registry.npmjs.org/@types/prettier/-/prettier-1.19.1.tgz",
@@ -1141,6 +1210,14 @@
         "@types/node": "*"
       }
     },
+    "@types/secp256k1": {
+      "version": "4.0.3",
+      "resolved": "https://registry.npmjs.org/@types/secp256k1/-/secp256k1-4.0.3.tgz",
+      "integrity": "sha512-Da66lEIFeIz9ltsdMZcpQvmrmmoqrfju8pm1BH8WbYjZSwUgCwXLb9C+9XYogwBITnbsSaMdVPb2ekf7TV+03w==",
+      "requires": {
+        "@types/node": "*"
+      }
+    },
     "@types/semver": {
       "version": "5.5.0",
       "resolved": "https://registry.npmjs.org/@types/semver/-/semver-5.5.0.tgz",
@@ -2063,6 +2140,11 @@
         "safe-buffer": "^5.1.1"
       }
     },
+    "blakejs": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/blakejs/-/blakejs-1.2.1.tgz",
+      "integrity": "sha512-QXUSXI3QVc/gJME0dBpXrag1kbzOqCjCX8/b54ntNyW6sjtoqxqRk3LTmXzaJoh71zMsDCjM+47jS7XiwN/+fQ=="
+    },
     "bluebird": {
       "version": "3.7.2",
       "resolved": "https://registry.npmjs.org/bluebird/-/bluebird-3.7.2.tgz",
@@ -2750,9 +2832,9 @@
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-      "version": "0.2.0",
-      "resolved": "https://registry.npmjs.org/decode-uri-component/-/decode-uri-component-0.2.0.tgz",
-      "integrity": "sha1-6zkTMzRYd1y4TNGh+uBiEGu4dUU="
+      "version": "0.2.2",
+      "resolved": "https://registry.npmjs.org/decode-uri-component/-/decode-uri-component-0.2.2.tgz",
+      "integrity": "sha512-FqUYQ+8o158GyGTrMFJms9qh3CqTKvAqgqsTnkLI8sKu0028orqBhxNMFkFen0zGyg6epACD32pjVk58ngIErQ=="
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     "decompress": {
       "version": "4.2.0",
@@ -3338,6 +3420,30 @@
         "ethereumjs-util": "^5.1.1"
       },
       "dependencies": {
+        "ethereumjs-abi": {
+          "version": "git+https://github.com/ethereumjs/ethereumjs-abi.git#1cfbb13862f90f0b391d8a699544d5fe4dfb8c7b",
+          "from": "git+https://github.com/ethereumjs/ethereumjs-abi.git",
+          "requires": {
+            "bn.js": "^4.11.8",
+            "ethereumjs-util": "^6.0.0"
+          },
+          "dependencies": {
+            "ethereumjs-util": {
+              "version": "6.2.1",
+              "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-6.2.1.tgz",
+              "integrity": "sha512-W2Ktez4L01Vexijrm5EB6w7dg4n/TgpoYU4avuT5T3Vmnw/eCRtiBrJfQYS/DCSvDIOLn2k57GcHdeBcgVxAqw==",
+              "requires": {
+                "@types/bn.js": "^4.11.3",
+                "bn.js": "^4.11.0",
+                "create-hash": "^1.1.2",
+                "elliptic": "^6.5.2",
+                "ethereum-cryptography": "^0.1.3",
+                "ethjs-util": "0.1.6",
+                "rlp": "^2.2.3"
+              }
+            }
+          }
+        },
         "ethereumjs-util": {
           "version": "5.2.0",
           "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-5.2.0.tgz",
@@ -3431,19 +3537,89 @@
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       "integrity": "sha1-L9w1dvIykDNYl26znaeDIT/5Uj8="
     },
+    "ethereum-cryptography": {
+      "version": "0.1.3",
+      "resolved": "https://registry.npmjs.org/ethereum-cryptography/-/ethereum-cryptography-0.1.3.tgz",
+      "integrity": "sha512-w8/4x1SGGzc+tO97TASLja6SLd3fRIK2tLVcV2Gx4IB21hE19atll5Cq9o3d0ZmAYC/8aw0ipieTSiekAea4SQ==",
+      "requires": {
+        "@types/pbkdf2": "^3.0.0",
+        "@types/secp256k1": "^4.0.1",
+        "blakejs": "^1.1.0",
+        "browserify-aes": "^1.2.0",
+        "bs58check": "^2.1.2",
+        "create-hash": "^1.2.0",
+        "create-hmac": "^1.1.7",
+        "hash.js": "^1.1.7",
+        "keccak": "^3.0.0",
+        "pbkdf2": "^3.0.17",
+        "randombytes": "^2.1.0",
+        "safe-buffer": "^5.1.2",
+        "scrypt-js": "^3.0.0",
+        "secp256k1": "^4.0.1",
+        "setimmediate": "^1.0.5"
+      },
+      "dependencies": {
+        "bn.js": {
+          "version": "4.12.0",
+          "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-4.12.0.tgz",
+          "integrity": "sha512-c98Bf3tPniI+scsdk237ku1Dc3ujXQTSgyiPUDEOe7tRkhrqridvh8klBv0HCEso1OLOYcHuCv/cS6DNxKH+ZA=="
+        },
+        "elliptic": {
+          "version": "6.5.4",
+          "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.5.4.tgz",
+          "integrity": "sha512-iLhC6ULemrljPZb+QutR5TQGB+pdW6KGD5RSegS+8sorOZT+rdQFbsQFJgvN3eRqNALqJer4oQ16YvJHlU8hzQ==",
+          "requires": {
+            "bn.js": "^4.11.9",
+            "brorand": "^1.1.0",
+            "hash.js": "^1.0.0",
+            "hmac-drbg": "^1.0.1",
+            "inherits": "^2.0.4",
+            "minimalistic-assert": "^1.0.1",
+            "minimalistic-crypto-utils": "^1.0.1"
+          }
+        },
+        "keccak": {
+          "version": "3.0.2",
+          "resolved": "https://registry.npmjs.org/keccak/-/keccak-3.0.2.tgz",
+          "integrity": "sha512-PyKKjkH53wDMLGrvmRGSNWgmSxZOUqbnXwKL9tmgbFYA1iAYqW21kfR7mZXV0MlESiefxQQE9X9fTa3X+2MPDQ==",
+          "requires": {
+            "node-addon-api": "^2.0.0",
+            "node-gyp-build": "^4.2.0",
+            "readable-stream": "^3.6.0"
+          }
+        },
+        "readable-stream": {
+          "version": "3.6.0",
+          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-3.6.0.tgz",
+          "integrity": "sha512-BViHy7LKeTz4oNnkcLJ+lVSL6vpiFeX6/d3oSH8zCW7UxP2onchk+vTGB143xuFjHS3deTgkKoXXymXqymiIdA==",
+          "requires": {
+            "inherits": "^2.0.3",
+            "string_decoder": "^1.1.1",
+            "util-deprecate": "^1.0.1"
+          }
+        },
+        "scrypt-js": {
+          "version": "3.0.1",
+          "resolved": "https://registry.npmjs.org/scrypt-js/-/scrypt-js-3.0.1.tgz",
+          "integrity": "sha512-cdwTTnqPu0Hyvf5in5asVdZocVDTNRmR7XEcJuIzMjJeSHybHl7vpB66AzwTaIg6CLSbtjcxc8fqcySfnTkccA=="
+        },
+        "secp256k1": {
+          "version": "4.0.3",
+          "resolved": "https://registry.npmjs.org/secp256k1/-/secp256k1-4.0.3.tgz",
+          "integrity": "sha512-NLZVf+ROMxwtEj3Xa562qgv2BK5e2WNmXPiOdVIPLgs6lyTzMvBq0aWTYMI5XCP9jZMVKOcqZLw/Wc4vDkuxhA==",
+          "requires": {
+            "elliptic": "^6.5.4",
+            "node-addon-api": "^2.0.0",
+            "node-gyp-build": "^4.2.0"
+          }
+        }
+      }
+    },
     "ethereum-protocol": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/ethereum-protocol/-/ethereum-protocol-1.0.1.tgz",
       "integrity": "sha512-3KLX1mHuEsBW0dKG+c6EOJS1NBNqdCICvZW9sInmZTt5aY0oxmHVggYRE0lJu1tcnMD1K+AKHdLi6U43Awm1Vg=="
     },
-    "ethereumjs-abi": {
-      "version": "git+https://github.com/ethereumjs/ethereumjs-abi.git#1cfbb13862f90f0b391d8a699544d5fe4dfb8c7b",
-      "from": "git+https://github.com/ethereumjs/ethereumjs-abi.git",
-      "requires": {
-        "bn.js": "^4.11.8",
-        "ethereumjs-util": "^6.0.0"
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-    },
     "ethereumjs-account": {
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@@ -6381,6 +6557,11 @@
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       "integrity": "sha1-yobR/ogoFpsBICCOPchCS524NCw="
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+    "node-addon-api": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/node-addon-api/-/node-addon-api-2.0.2.tgz",
+      "integrity": "sha512-Ntyt4AIXyaLIuMHF6IOoTakB3K+RWxwtsHNRxllEoA6vPwP9o4866g6YWDLUdnucilZhmkxiHwHr11gAENw+QA=="
+    },
     "node-fetch": {
       "version": "1.7.3",
       "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-1.7.3.tgz",
@@ -6390,6 +6571,11 @@
         "is-stream": "^1.0.1"
       }
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+    "node-gyp-build": {
+      "version": "4.5.0",
+      "resolved": "https://registry.npmjs.org/node-gyp-build/-/node-gyp-build-4.5.0.tgz",
+      "integrity": "sha512-2iGbaQBV+ITgCz76ZEjmhUKAKVf7xfY1sRl4UiKQspfZMH2h06SyhNsnSVy50cwkFQDGLyif6m/6uFXHkOZ6rg=="
+    },
     "nofilter": {
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/nofilter/-/nofilter-1.0.3.tgz",
@@ -7169,15 +7355,6 @@
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       "integrity": "sha1-uwBAvgMEPamgEqLOqfyfhSz8h9Q="
     },
-    "scrypt-shim": {
-      "version": "github:web3-js/scrypt-shim#be5e616323a8b5e568788bf94d03c1b8410eac54",
-      "from": "github:web3-js/scrypt-shim",
-      "dev": true,
-      "requires": {
-        "scryptsy": "^2.1.0",
-        "semver": "^6.3.0"
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       "version": "0.3.0",
       "resolved": "https://registry.npmjs.org/scrypt.js/-/scrypt.js-0.3.0.tgz",
@@ -7603,11 +7780,60 @@
             "xhr-request-promise": "^0.1.2"
           }
         },
+        "ethereumjs-tx": {
+          "version": "1.3.7",
+          "resolved": "https://registry.npmjs.org/ethereumjs-tx/-/ethereumjs-tx-1.3.7.tgz",
+          "integrity": "sha512-wvLMxzt1RPhAQ9Yi3/HKZTn0FZYpnsmQdbKYfUUpi4j1SEIcbkd9tndVjcPrufY3V7j2IebOpC00Zp2P/Ay2kA==",
+          "requires": {
+            "ethereum-common": "^0.0.18",
+            "ethereumjs-util": "^5.0.0"
+          }
+        },
+        "ethereumjs-util": {
+          "version": "5.2.1",
+          "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-5.2.1.tgz",
+          "integrity": "sha512-v3kT+7zdyCm1HIqWlLNrHGqHGLpGYIhjeHxQjnDXjLT2FyGJDsd3LWMYUo7pAFRrk86CR3nUJfhC81CCoJNNGQ==",
+          "requires": {
+            "bn.js": "^4.11.0",
+            "create-hash": "^1.1.2",
+            "elliptic": "^6.5.2",
+            "ethereum-cryptography": "^0.1.3",
+            "ethjs-util": "^0.1.3",
+            "rlp": "^2.0.0",
+            "safe-buffer": "^5.1.1"
+          }
+        },
         "node-fetch": {
           "version": "2.6.0",
           "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.6.0.tgz",
           "integrity": "sha512-8dG4H5ujfvFiqDmVu9fQ5bOHUC15JMjMY/Zumv26oOvvVJjM67KF8koCWIabKQ1GJIa9r2mMZscBq/TbdOcmNA=="
         },
+        "web3-provider-engine": {
+          "version": "git+https://github.com/trufflesuite/provider-engine.git#3538c60bc4836b73ccae1ac3f64c8fed8ef19c1a",
+          "from": "git+https://github.com/trufflesuite/provider-engine.git#web3-one",
+          "requires": {
+            "async": "^2.5.0",
+            "backoff": "^2.5.0",
+            "clone": "^2.0.0",
+            "cross-fetch": "^2.1.0",
+            "eth-block-tracker": "^3.0.0",
+            "eth-json-rpc-infura": "^3.1.0",
+            "eth-sig-util": "^1.4.2",
+            "ethereumjs-block": "^1.2.2",
+            "ethereumjs-tx": "^1.2.0",
+            "ethereumjs-util": "^5.1.5",
+            "ethereumjs-vm": "^2.3.4",
+            "json-rpc-error": "^2.0.0",
+            "json-stable-stringify": "^1.0.1",
+            "promise-to-callback": "^1.0.0",
+            "readable-stream": "^2.2.9",
+            "request": "^2.85.0",
+            "semaphore": "^1.0.3",
+            "ws": "^5.1.1",
+            "xhr": "^2.2.0",
+            "xtend": "^4.0.1"
+          }
+        },
         "web3-utils": {
           "version": "1.2.6",
           "resolved": "https://registry.npmjs.org/web3-utils/-/web3-utils-1.2.6.tgz",
@@ -7622,6 +7848,14 @@
             "underscore": "1.9.1",
             "utf8": "3.0.0"
           }
+        },
+        "ws": {
+          "version": "5.2.3",
+          "resolved": "https://registry.npmjs.org/ws/-/ws-5.2.3.tgz",
+          "integrity": "sha512-jZArVERrMsKUatIdnLzqvcfydI85dvd/Fp1u/VOpfdDWQ4c9qWXe+VIeAbQ5FrDwciAkr+lzofXLz3Kuf26AOA==",
+          "requires": {
+            "async-limiter": "~1.0.0"
+          }
         }
       }
     },
@@ -8404,6 +8638,18 @@
             "underscore": "1.9.1",
             "utf8": "3.0.0"
           }
+        },
+        "websocket": {
+          "version": "github:web3-js/WebSocket-Node#905deb4812572b344f5801f8c9ce8bb02799d82e",
+          "from": "github:web3-js/WebSocket-Node#polyfill/globalThis",
+          "dev": true,
+          "requires": {
+            "debug": "^2.2.0",
+            "es5-ext": "^0.10.50",
+            "nan": "^2.14.0",
+            "typedarray-to-buffer": "^3.1.5",
+            "yaeti": "^0.0.6"
+          }
         }
       }
     },
@@ -8712,6 +8958,18 @@
             "underscore": "1.9.1",
             "utf8": "3.0.0"
           }
+        },
+        "websocket": {
+          "version": "github:web3-js/WebSocket-Node#905deb4812572b344f5801f8c9ce8bb02799d82e",
+          "from": "github:web3-js/WebSocket-Node#polyfill/globalThis",
+          "dev": true,
+          "requires": {
+            "debug": "^2.2.0",
+            "es5-ext": "^0.10.50",
+            "nan": "^2.14.0",
+            "typedarray-to-buffer": "^3.1.5",
+            "yaeti": "^0.0.6"
+          }
         }
       }
     },
@@ -9730,6 +9988,15 @@
             "xhr-request-promise": "^0.1.2"
           }
         },
+        "scrypt-shim": {
+          "version": "github:web3-js/scrypt-shim#be5e616323a8b5e568788bf94d03c1b8410eac54",
+          "from": "github:web3-js/scrypt-shim",
+          "dev": true,
+          "requires": {
+            "scryptsy": "^2.1.0",
+            "semver": "^6.3.0"
+          }
+        },
         "uuid": {
           "version": "3.3.2",
           "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.3.2.tgz",
@@ -9806,76 +10073,6 @@
         "web3-utils": "1.2.2"
       }
     },
-    "web3-provider-engine": {
-      "version": "git+https://github.com/trufflesuite/provider-engine.git#3538c60bc4836b73ccae1ac3f64c8fed8ef19c1a",
-      "from": "git+https://github.com/trufflesuite/provider-engine.git#web3-one",
-      "requires": {
-        "async": "^2.5.0",
-        "backoff": "^2.5.0",
-        "clone": "^2.0.0",
-        "cross-fetch": "^2.1.0",
-        "eth-block-tracker": "^3.0.0",
-        "eth-json-rpc-infura": "^3.1.0",
-        "eth-sig-util": "^1.4.2",
-        "ethereumjs-block": "^1.2.2",
-        "ethereumjs-tx": "^1.2.0",
-        "ethereumjs-util": "^5.1.5",
-        "ethereumjs-vm": "^2.3.4",
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@@ -10089,17 +10300,6 @@
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