{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xb064944ee01e1202c34b1d6d6b3b4ff5aa28d68006f8458bba74e02bab1b88a6",
    "signature": "0xaeb52a993573282067b25e420c67cf5ed8ce9dd0c0c1238ba96b215c13c2e1bb60fda36eaac907923d3de2e47f29131eeaf31c888f3d8f67e3e5fb32539f8f771c",
    "signer": "0x7fB23CaDa61ACB0c4fCc650FDE57c3B812d4A5f4",
    "userId": "66130"
  }
}