{
  "manageEntity": {
    "action": "Save",
    "entityId": "1805964051",
    "entityType": "Track",
    "nonce": "0xc469f8cf01b89e4799bba832ac8106065fa3b20e3b22f8c35b2beee464f0f17e",
    "signature": "0x1067f5b0fc8685278f493075822f9c52a2a8bf543bec8cb601af10f2c6b8555c30caf83a8319eb79f58b1849680b5ccb44253a67964c6714f6a09f17753fbc381b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}