{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x6888e3a713ea5fd202090d2e93bd4647000bf434fcba0504cf986ed1a22b4188",
    "signature": "0x4bcb6d9f89565fc86b17c98b8190bea6b369e957ccbd0b98ed65e6addac94f9473b1f8cfe7e647367b39fd3496a3c985f5247920490ddca335b3c22635a3983c1b",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}