{
  "manageEntity": {
    "action": "Save",
    "entityId": "2096564038",
    "entityType": "Track",
    "nonce": "0x33daf894c7fb675436875ce2d2b00e4df4350704641f0345c9f4f2281d36c47d",
    "signature": "0x7a927c33deb2255ccef6169954ad1f9829795a74b818321c7980afaf937834532b44e304c5a142f348e41fbf615b961026fdf4bd4804cb6cf2b55f3bf43ba8b61c",
    "signer": "0x5fa60F185681545769de01098bB8F29cfbaE3cF0",
    "userId": "489026160"
  }
}