{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xdef9081e9752d35119437b2df7d185fc04865166f1cc41770a600767e1aa79af",
    "signature": "0x2a01ff8272122de45b9bf5100b3d3c5b94dbd6cc7bdfc89d33094ee2de1451186536c8bdadda0e101466e33719e9046aa7be3b7e4eb06995b2c7032c1b0a06da1c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}