{
  "manageEntity": {
    "action": "Save",
    "entityId": "202354",
    "entityType": "Track",
    "nonce": "0x2594dcf720186f471b397883bbe0adf013224832d95666ba07b31072d64f582b",
    "signature": "0x068ee0674005588127faa6348756e28aab56cb75dd63a6b2307ca64606200a066e8001ad7efb9dc79adc1540db85e92082b9b607b112a84797122ab668e70dc51c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}