{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "121080611",
    "entityType": "User",
    "nonce": "0x5cea3acf82a8adb5f42aebeb34c4830c523a34d576a206e5b187892f5d74df31",
    "signature": "0x660ff7f58f7fa6cac0049b188a4f18d8c1a393c31d682b9ba829613ac03d07d445cd137691edccf27493677b849205ca49051ae5138ec0222a4d631a3dae328c1b",
    "signer": "0xDfAC0702040EaBd2d42e773014D4b014C0747D9c",
    "userId": "707937"
  }
}