{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x669bfb43c82c7af06c50a344c57ea9c15b775b2869ebd6cfc338fa5d623f8700",
    "signature": "0x5229110c6fec73ddb770a6d38df56e97e04afda20b8e3e88e99dae28aaefb35a3cc74cfb08653b82fea0c4d38acdd18bb2ae07f2097a4d9fe1b5e0475198d2d31b",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}