Email.JSON

{
  "$schema": "https://developer.microsoft.com/json-schemas/sp/column-formatting.schema.json",
  "elmType": "div",
  "children": [
    {
      "elmType": "a",
      "style": {
        "padding-right": "8px"
      },
      "txtContent": "Email",
      "attributes": {
        "target": "_blank",
        "href": {
          "operator": "+",
          "operands": [
            "mailto:",
            "[$Title]",
            "?subject=Wonder women here&body=Hey ",
            "[$Title]",
            "\nJust checking, if you have saved the world?.\r\n---\r\n",
            "\r\nClick this link for more info. http://contoso.sharepoint.com/sites/ConferencePrep/Tasks/Prep/DispForm.aspx?ID=",
            "[$ID]"
          ]
        }
      }
    },
    {
      "elmType": "a",
      "attributes": {
        "target": "_blank",
        "iconName": "Mail",
        "class": "sp-field-quickActions",
        "href": {
          "operator": "+",
          "operands": [
            "mailto:",
            "[$Title]",
            "?subject=Wonder women here&body=Hey ",
            "[$Title]",
            "\nJust checking, if you have saved the world?\r\n---\r\n",
            "\r\nClick this link for more info. http://contoso.sharepoint.com/sites/ConferencePrep/Tasks/Prep/DispForm.aspx?ID=",
            "[$ID]"
          ]
        }
      }
    }
  ]
}