{
  "manageEntity": {
    "action": "Save",
    "entityId": "2000680560",
    "entityType": "Track",
    "nonce": "0x46dcef8a62c0766b411d46c64a10a81c78150517d01b598abf130e7679089e2d",
    "signature": "0x75f118832581b292616e4f36245165e65ebccfe534adc13c6e019b24d1a8341140df7b76554cdf96562ac28163d10f4260b53ac57c987ae15f36e9f8f56d084e1b",
    "signer": "0x0D2c1331F52a98aF1Bd206E3C28062E717CA9E51",
    "userId": "597927803"
  }
}