From 085a3b712f0ac05319861978a174c6e8bd3f2d29 Mon Sep 17 00:00:00 2001
From: Marco Tabasco <matabasco@gmail.com>
Date: Tue, 16 Apr 2024 15:05:11 +0200
Subject: [PATCH] add data structure

---
 contracts/libraries/SSVStorage.sol | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/contracts/libraries/SSVStorage.sol b/contracts/libraries/SSVStorage.sol
index 1ddd79aa..508feb42 100644
--- a/contracts/libraries/SSVStorage.sol
+++ b/contracts/libraries/SSVStorage.sol
@@ -33,6 +33,10 @@ struct StorageData {
     IERC20 token;
     /// @notice Counter keeping track of the last Operator ID issued
     Counters.Counter lastOperatorId;
+    /// @notice Operators' whitelist: Maps each whitelisted address to a list of operators 
+    /// @notice that are whitelisted for that address using bitmaps
+    /// @dev The nested mapping's key represents a uint256 slot to handle more than 256 operators per address
+    mapping(address => mapping(uint256 => uint256)) addressWhitelistedForOperators;
 }
 
 library SSVStorage {