{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xd51605256cab4eedd84885b3d1aa9c9c1e80b20f5d9b705c106f3e16ffb703a4",
    "signature": "0x201d56cc63558b5d34b657e93c0ed703a32c47f042ffcc139fc9b5edf2f5705a433f6d6eda471dee3665adb0c7c0c9a2c4571b624983e1b425412bc3c50ce97c1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}