{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x2d15e35cdf3e61a8e3d5bc8a25885e0a41224ea1a167c0052ec5b635e1a829f5",
    "signature": "0x5e32f9d0a769c7c9edba42da06b9abad65fc4b80748192d405c839c1b42d965f1ff1233539b2f75707b9d4ae37a09d83a022d3c34652003adb9946d3976319221c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}