{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "4281",
    "entityType": "Notification",
    "nonce": "0x12610be6da43f5a75fb3332e3a919783e1a1ba5b80b9753270c9d9a5fafd0a3b",
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    "signer": "0xCf495DD2A93D70eb0ccb3Cb24C9B455C7Bd7e708",
    "userId": "12404722"
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}