{
  "manageEntity": {
    "action": "Save",
    "entityId": "33067",
    "entityType": "Track",
    "nonce": "0x7c516fdef85375596274a2768bde37f4b4b30b94df75105e917805a248e8099b",
    "signature": "0x853bec7de62238ca25384347d60e3fb51cfebbbac3d6367bb8b78898b184a9fa5259d9368be37ed0a7583e9d01cdfd2d19c50d4d1edf5a41b4ddba087c269ab41c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}