{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "76666",
    "entityType": "User",
    "nonce": "0xc5d47b9f6e653b77fc2283eafb663dcf90d4c8a6e4a04bd42b71a89acdbdb45d",
    "signature": "0xa0abd023240d1c52cec6dea2510aab1def34c9d45ed3e31bdde3847c294cc1c54eebbbbdf576c2defb63fc94e251d0aa71933848b5d545eb3cdd77b363bfea841c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}