{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x45119293fdfe3788b6a5de0f4756e4192ae01a66b15440d60b40a5cc8a2183c4",
    "signature": "0x50606b67a4a6dbb0c8c74f4f5829d9aa3bb9e1eda635ff081e74cf3d8d5c8f4d51444ce11d5ef9ba07411103ecc16673037302d00600a67eb3193cdb309edfdc1c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}