{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "172110",
    "entityType": "User",
    "nonce": "0xf90ddb48c0a28e204a34514a01a6d7bc489f43c91ad9827896987435f756de18",
    "signature": "0x0f18c32892e94413dfd0eea757e4c8b36636966a9ef061a4a5aed23303933b5f6415f9ecebf41fa8a1648f8b4b709995ecc2573fb47a7d4cf5da632160a0ae9d1b",
    "signer": "0xDfAC0702040EaBd2d42e773014D4b014C0747D9c",
    "userId": "707937"
  }
}