{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "771854065",
    "entityType": "User",
    "nonce": "0xe78a52d79248cde142e7b48fbb2d003a981a715c3934acb21e7787ad77d02ed3",
    "signature": "0xfa8e7f4dcd343f514036e0178b7b9b60b756502bdd6b28246f47c50faee079605c7d9dc7811143a5b493787e4fcf0053fe3a645074bbe0ee0b0539301063f0231c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}