{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x9e1ed882b7dd12cea92b725500fd49bf47c55fdf7a3dafb76a7aa9ef2c7e2f01",
    "signature": "0x85d25ccd62f423feed48f9415025c00a435ef6089d6968703bda49cc094729d514cea29402828446734d98d9db2e530eb5a6dfa9e7428c88fb5d9ceee8a95ed11c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}