{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x720dd40e77d5c2707c8a94a5dad2251f8a84400792605aade466ea8bfed864db",
    "signature": "0x76ed67c460a4d46b6572c2792e3a76135ebd47b48ddb5bb5d61321d28f1eb78c13ba23b13b6d75abd4b549c1f393ae3731eba29aeec25a72e29025c1b8c168c01b",
    "signer": "0x9369ae91F6A1cC4996D9126FD991d64e7E24c805",
    "userId": "333763354"
  }
}