{
  "manageEntity": {
    "action": "Save",
    "entityId": "68564102",
    "entityType": "Track",
    "nonce": "0x78c2de3a6ba27dff6bd4b57256bbc328027472dce0fb07c62cc026323818c162",
    "signature": "0xe2e8942e1136665e6a2b65b43bb4dd7fad52e5f35e9ea82a3040dc695068318f23014c3d26c91d42ed8b722a6e81b091fc2549bcfc3fc143f84c20f0440f52321c",
    "signer": "0x0D2c1331F52a98aF1Bd206E3C28062E717CA9E51",
    "userId": "597927803"
  }
}