{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x7791fde8f4bf8a96d080fd4e2d7455a1540be9a5e9deab4335f7514fc9de4946",
    "signature": "0x320961828f54c4742d821a981308e3c61f1f3c85299d4db3721215c64548d8a176ebb2124327384d52bae8c03fcd00428bb2cd2f03eb5bbe9429e6b0a520548e1c",
    "signer": "0x7fB23CaDa61ACB0c4fCc650FDE57c3B812d4A5f4",
    "userId": "66130"
  }
}