{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xcc016249fdffd3e05c89a57ec61ca90abb63f64d8fe8f839e52e788e33e671ea",
    "signature": "0xb1775143ec70c47324293bfba1e7fc5f22b2b7f3a9a037376e9c44f2319a8d3a77fe09cb88defc978c6fdef92a302298317bcf2e7fe021bac9c9eab23ba315b61b",
    "signer": "0x7fB23CaDa61ACB0c4fCc650FDE57c3B812d4A5f4",
    "userId": "66130"
  }
}