{
  "manageEntity": {
    "action": "Save",
    "entityId": "1932601362",
    "entityType": "Track",
    "nonce": "0x44e7f0b7bcc719f37f9759ec6447355dac45f36d6e2bfd055b3845d359d2d109",
    "signature": "0xc95ca98a25b4f8d51d2dc781e49db96f75212ab0452cee54583fbf2c697060e2365d7f0166402a8a0ea36cc4a7818c3ab30b44737931362650cab3d0dcc2675b1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}