{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xdf9a645805e884bf71433a01f8e1784906d9c2b72dffcc1e6a58673090676798",
    "signature": "0xac5785efd747ba6a71c0a398643ba330db928227530937e1ad6195302d13957516268aac177c126250416e829ef7ac31579cf9fd9af21dcd577facbbf061b8661b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}