{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x4a28012392a283595ebb14a4bab59969347710fe9fc80cd49dcf77298ae02419",
    "signature": "0xc63ce036a4e3f414b4a7e0a3e5ffdec5bb5d2d2a70c978ff8de58f742d9ba8b04b64850ce9b3a5b697a6e9b2777411f6fe25c139b74cc23f7b38124f7f7029401c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}