{
  "manageEntity": {
    "action": "Save",
    "entityId": "34005089",
    "entityType": "Track",
    "nonce": "0xff204a5f107c921adb37f52e73d45fe424544081994df30cb587c5ffa779b209",
    "signature": "0x2c6d249eb4c7492b0a98432bf3f4879c402cb7459e95bed49709f8a84543ea48722faf2a8fee876372ec57d3e615ff687c3fc148f515b32c99aa2fa41d1bd71d1b",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}