{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xf458247d75e208811aa25278897e0b4bde68b8d4429463184cc8696910c06bbf",
    "signature": "0xe39b39c1b3a031e22e0449ee5592bf8b40d49f42694e72c5997457e7baf842bb25dea0de1a7770d73bd42f76de806960619cc8c172a4f5ada19e136015945d001c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}