{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xb3d4d1d070d97e3783ded4ccfabc7d716b4c94eeeb894136046a03cdddc23526",
    "signature": "0x1830b8b5989839fe6f23e7054a7b6750221d06988bfeb6167ed1817d75d1f86e559eca572d53a2d96324d2c815f0d5f5ce84939a82f20d3d5df1cb24200e2c551b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}