{
  "manageEntity": {
    "action": "Save",
    "entityId": "936366238",
    "entityType": "Track",
    "nonce": "0x059cea95a1aaee4894e2df05b74b12d862d00f4ffcb9793b05ffcb91f6fadacb",
    "signature": "0xd74f3b2579e8d95a6896ad213972063245b5a5932b7d9cba75ebb4f21bdb4cab5b8cfa9c8dabef897337276af395bc4bd6c6d67b128dad02d81ed67161d88df91b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}