{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2749",
    "entityType": "User",
    "nonce": "0x9408eb0d4c9bc6c00503539ec6b8bfa5d31f3d3c5964d7b983d4d705b50d851c",
    "signature": "0x64c62a14211b169a919f76055125e1dd0ff48da6610100773c936065937d8d5d03dd71be1191d9d5b289fc2d7eb5694748ea440b10b6995c4b6e8d140728ab3e1c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}