{
  "manageEntity": {
    "action": "Save",
    "entityId": "2081277583",
    "entityType": "Track",
    "nonce": "0x1c35d34aa0e1ca0d96f4d8af42530e2292afc09450675c7ca0f298e79b818e58",
    "signature": "0x0fd324334dd097183e032ed4b566ae0ac7f66b426d9bf50872db0c0c663ec86e0465b4746ae3e27e669ebbb241030254e581ae9f269c46d3d3a73f11e38b7bdf1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}