{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xad29122d46bfaa7828091830c6775525fcd4ccee670dbf88ae2fbae392c5ee27",
    "signature": "0x443ac4b5a206fc0fa45ba072b67569590e30d72cf103d932661ccf246b7dc332798caaa16a437f844d46937b557fbfe3070a7512112c1433bc75679d79ba23aa1b",
    "signer": "0x7422a9c7583c6614649EAfDfbE8873436DF88929",
    "userId": "627877019"
  }
}