{
  "manageEntity": {
    "action": "Save",
    "entityId": "1079793750",
    "entityType": "Track",
    "nonce": "0xedc3e2a9abe02458d023fbc5b5e86d27a72555d51c57512427152bf3b1fdaea9",
    "signature": "0x79d45a2ded2665df5283f8e3f7b5a700392282ca33dac8a61d68cf2d69d2478677387da927c6ed7924ebb8c4cad918f324be93ce061f220766c7130b524e541a1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}