{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x593de471f1b8a5b462683086f208630d0c4bcfdfe970a199577231ded036dfc7",
    "signature": "0xd45df8abf6dc255a3648393f4f130ca4358b218dc085ec693519f8f35dcdc27713b6137672aeb50acf1814f1e03ad4876365214a558f1bfd960b398ecfce6f981c",
    "signer": "0x4f24EFcc0f8174B7836f5EBbeBd72AF3f1746E74",
    "userId": "230109234"
  }
}