{
  "manageEntity": {
    "action": "Save",
    "entityId": "1032758",
    "entityType": "Track",
    "nonce": "0xa2ed513fdd3c7513968d687f93828b220a988f0f4e7b14cfe55bce436aee41f9",
    "signature": "0x510d02b200b9b1d03d8384842a529d9b617720d3564d67fae45e23c8db48f0725f6bc3d01c6d47386166b2f6a947ab86ade86bb3376e9749d7f283b1f0ec2d461b",
    "signer": "0x9Fa5E44ADd28caB1F5D45992F003ba0455ff36e6",
    "userId": "543686915"
  }
}