{
  "manageEntity": {
    "action": "Save",
    "entityId": "1080635717",
    "entityType": "Track",
    "nonce": "0x599936ba92a0722b847d7e151bf1ef4321e37310d4bd1bf9dca52ead7fed40c0",
    "signature": "0x1ad9a7bc8baacf30ac110ceb0f19d92d150b3876eb0eb209fa54240c720fea5637eff560eb6c719f25c37a7d59ed71181352e47423a58ca7771d4d23a93288b31c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}