{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x66025c3f674735660a999d8de20563204d90c4f20b2e4d37dd7df75a7e29ac12",
    "signature": "0x81695f9edee96602a8a79868fe0b97d27f4df44b2c71c37a41c4e5b080fb1bcc7c7907c8b5300f215f1a3f01ecdaa7fdcc394adea354516cd63366610d3614eb1c",
    "signer": "0x7fB23CaDa61ACB0c4fCc650FDE57c3B812d4A5f4",
    "userId": "66130"
  }
}