{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50672",
    "entityType": "User",
    "nonce": "0x77b1e50cc617e49412602743d620354a657d3bed431d74fd50a62105cfdfa035",
    "signature": "0x8b7ee76f29f6a071e23803d7596920f5477656d48c09ad7e6bf5379ccf6ee99d4331d616a222f828791540acc3fdef729c7ecd4cefe91a4e73899c9e3b833b911c",
    "signer": "0x5fa60F185681545769de01098bB8F29cfbaE3cF0",
    "userId": "489026160"
  }
}