{
  "manageEntity": {
    "action": "Save",
    "entityId": "1127088759",
    "entityType": "Track",
    "nonce": "0x5d7b2690256a1827acaaf66b774c87ed364476fbb0cfce243e73c165b67fc0f6",
    "signature": "0x2f12a45b8fd961c445057b067503eb00cd1b6d63c2cdcd844f5119f159840144370129062680d6765ea6c51b9384d825bdada41638a16bd1e31e585b3db958dd1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}