{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x3d660932e75221b6d7a8e2800b47642ff026e5c3e00d8997ec7a5ee2e29da521",
    "signature": "0x23bc3b554dde98ba404ee7771b70106cbcba66be4fbadac6a68c7d0f6f76757e20742a0a523ca50c13e8ca574993b423ac829b2818e38e02409fb6418467676c1c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}