{
  "manageEntity": {
    "action": "Save",
    "entityId": "100461",
    "entityType": "Track",
    "nonce": "0xb43db47f577c5e8ea42afab0dabcd2969aa4df2138be98354041740604c1d2bf",
    "signature": "0x95c1c1b5ec3097e1da98342e7f5c0ea57ea372f87588ce4027010c400ff71fa54802c10aee9a6852d1123ec993246fedef7c537853e477328806b2990ef83adb1c",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}