{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "803288761",
    "entityType": "User",
    "nonce": "0x57ed9906e94cdb7c3f688460bf79fa9fde14ba3eb47330eb6a9c24a54de0a4af",
    "signature": "0xd5781de89017113a085b6eb293d781c6a5cba86e3e6b43f7ccac1d4bbd7cf6fa111499f57d080dee8b4fceefaed988658a3f29be34da3b1fb8374779e18a0a3e1c",
    "signer": "0x7DfB12C89c72A8465F4cE92770aB05ec246D6f97",
    "userId": "141005349"
  }
}