{
  "manageEntity": {
    "action": "Save",
    "entityId": "38410",
    "entityType": "Track",
    "nonce": "0x00acbd6f200ee4d0357069d4f42be6c4f5590bbe4516edcf8a7aba3494446e84",
    "signature": "0x062e9ccb646c91a4c31ef2f6b805d51610907c8276aaa3ad61248ffc1e0adc1537c6365d3f5d0d2b6196eb41cc0895f749306eafade79680cca482e1f4a6f1b71c",
    "signer": "0x4D8EDeF47b57f98c89BDFf851267B0327BE4cD05",
    "userId": "5307724"
  }
}