{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x646bfb1578d34ff1311e03e212506aeec28d1333c65714e9098d6ed02d6f016f",
    "signature": "0x740e2428a37b6e69a7b60fe79d9e85cdfaae13ac741c98b5755baafa970825d2371880f2568be3aa1399f1b686fced759bd9e4ebc073f00ec8453afd5e4ed7241b",
    "signer": "0x7fB23CaDa61ACB0c4fCc650FDE57c3B812d4A5f4",
    "userId": "66130"
  }
}