{
  "manageEntity": {
    "action": "Save",
    "entityId": "1716024605",
    "entityType": "Track",
    "nonce": "0x749d9544f44b772ffb9279b3eabce3069de141403018dd482ccf3d5721d990d6",
    "signature": "0x0e62d68c47c3e5113ab6af1dfabc8acf3f8b585a17f700623df8f30de2205f6c5f8891c285ea1b36216934136b1479e9424b7d264dcbd520490f1a3e28d7a4ff1b",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}