{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xd3def42038a61d580173bb2891383db103046de71d61272a2eb2d75f30f8fa7d",
    "signature": "0x7a030c5713732be2b1dac14453465ca0417845015bcc92336b9c7faf8ece0bb323886001a08485fea9577f29d9a4ad51dbe0400032a6738a30523ddffb4ebefa1c",
    "signer": "0x0fdbE0966d6f65E3DE225D16D06131c10d4F2b3e",
    "userId": "560630042"
  }
}