{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "901788935",
    "entityType": "User",
    "nonce": "0x39e04a963549a95d8718b90d391f9f939a95ab532000c8399afa09cbdfed32c8",
    "signature": "0x9621c847d849e9117b2afbf1bf36bfcbf7ea330db23ca788d30a20e7606187087f44172593ddd3fc587c04619a42afaedb3903decbdf85d6b56d4196a6b69ef01b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}