{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x15947db39e117aa0ceec7af79f4b864535788c1068507db69b30f06ff56e4420",
    "signature": "0x3cd14f28542ad7732b7f665af90938900c6965f874e150dfb54466a29345a56560adb427823772505a438f491a4662c1fdf33afb7f812e484eb483c6835ac3cc1b",
    "signer": "0x63d394E88B78FF653F4FCeB0AC74Cf5b064dfC34",
    "userId": "633246973"
  }
}