{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "870684573",
    "entityType": "User",
    "nonce": "0xc03f834e9eb47b606e54271522d8dba5fa0cd8263463336ab8d1441f1d87b5a6",
    "signature": "0x7d745f7432b301879d7c7bf183f6dd5743c5a32406472d723441dd4e65ea9c0f0e85ba4ae583e8b7a36958776830b39c3ed3dedc9d10be99ffe92920dfdd2ebd1c",
    "signer": "0x5C13CD392EcB86FaceF8A07FC5B300833E86cD23",
    "userId": "167249"
  }
}