{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "651989541",
    "entityType": "User",
    "nonce": "0xaf8d9d91bc042c003198bbf314c4d213f7c5e2763810920917da4b4241f892b4",
    "signature": "0xd19deefdeec35db1097beb871ee93bdb4018c2f70f2efb3b74b2a5b5d888bf284b4d5e0db9337462dbe849d9a5c9490e7da1dbfb20fc069b4be92b26f5305bcb1b",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}