{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xc34f27467a0ccd28844fb3c74b1e6bc5a07963bc84cb4bc4e50a231be94fa104",
    "signature": "0x4c37c9d194ff364637ff66f26440986f807db70d6c52716d328456665a8a4c45711651e5fd0ae3270cec1a17246b560e5b75ca257ac01b861044801bf6c4d26f1c",
    "signer": "0xb6B208a8f79b1D88d245afa5aDB0a40d38cd6DD1",
    "userId": "528688046"
  }
}