{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x395317b41f6b33b021fe677c3eecba9f2d06296d4f8a39cb24de97fe17a8f71f",
    "signature": "0x90f921709ea06d0e22e5c7f36a6a78250f3cf5926e865eec8796893ef93a396370e03682c89ddf9b482fdd103adb7de046e31adbfadec7caa2a89242a8e8fd7a1c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}