{
  "manageEntity": {
    "action": "Save",
    "entityId": "1712794581",
    "entityType": "Track",
    "nonce": "0xdf89189184ce743c776fb1db7bfbe0b08e2e239bcaa611b7bd740f220e8153b7",
    "signature": "0x085f3226f5a90b60b676591905e1a0224ec149ee769b83d1462ad9cec68f157c06fa06e9352d71b52011a8de3faf2ef79787908accc2962cb85f10a81fc80e9c1c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}