{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x4b92dd92b062013a16eb505e4a8730505b687c0c7bfb7635389256476b0cf85f",
    "signature": "0x2c862762f2dc78db501ac1617e96943f3b6c5faefb7616af7b5a709dc834fc6d1a74ac263d7cb1fa2fa1762263619a440ea216bde599db330dccb954c2e37a141b",
    "signer": "0x7fB23CaDa61ACB0c4fCc650FDE57c3B812d4A5f4",
    "userId": "66130"
  }
}