{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x58269dc5636c0404bafe976b538eca91f6cd54d109096863177f6795120aca28",
    "signature": "0x65ec2753825fa482b210573ebbfe9d6c59a9dc03a6a1d8fae1a1adeebcd29eff4a2ff0f421513e8ecde1a675060758a35e55a284bb6dadcfd6dee1c74e36a6491b",
    "signer": "0xdD03ED106abBEF4982159500e32B8602B985a69B",
    "userId": "444965341"
  }
}