{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x76462bf5ffce777e9967454137b15fe18a79acfd08fb05add6b144589523fd1c",
    "signature": "0xcaf5c9a186734ff01ed9ec50ad6e7695211ecf34bba9873744e8457f5e3b30fb0a97199ad9123cbc8c56f44db035182ddc7e8740f36e055b0314b2b049edb4b31b",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}