{
  "manageEntity": {
    "action": "Save",
    "entityId": "100014095",
    "entityType": "Track",
    "nonce": "0x9dee7ea7c5812352498679e158ae734dfcf197a6b62b901a85bbb2c01e607f91",
    "signature": "0xe1d900ecce8b7b34c248197de189657800e69165b30d4e0dd1064a90f17dfa9e374ea49ecdc773a92c59d7370f32e3d5ef177c75e8b1704c2c4afe6403c198481c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}