{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x313e7e6955939b14dcc3686731275f8fca7b14f541cd3ee032daba74db25b649",
    "signature": "0x34149beba01e192df53793107fa843fc6fd4c04a44fd05697e7412965a0c5fd2384ea99fe300b636ee4bc2b28c165c4f31abe8a9924f9f8ed58d3bf028d93b8f1c",
    "signer": "0x7fB23CaDa61ACB0c4fCc650FDE57c3B812d4A5f4",
    "userId": "66130"
  }
}