{
  "manageEntity": {
    "action": "Save",
    "entityId": "1313895482",
    "entityType": "Track",
    "nonce": "0xad88d5758d413093c190d7bf31265dab8a54b56b40380ebe077a49e815a1544b",
    "signature": "0x70ae5b8185b79a08914d3c82326583bc4fa0a7d95a4f2c52d8714ac0104dcbf91ab4780e56299ba497bb1dcc91cfd22aeeaa0292ca48d1374384db665acda7111c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}