{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xef0c453268b335d172b238524c8a19185c8d3c75c2e726a753ca93215bad23b1",
    "signature": "0xfd72572d11ddc8c723c4497d279aaee1276184951d9f3577542f0d538371ae62387c750111bd2d52889a70694581a645f3732df5b70a97d7c085d11c5dc5124c1c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}