{
    "SaleToPOIRequest":{
        "MessageHeader":{
            "ProtocolVersion":"3.0",
            "MessageClass":"Device",
            "MessageCategory":"Input",
            "MessageType":"Request",
            "ServiceID":"0207111104",
            "SaleID":"POSSystemID12345",
            "POIID":"V400m-324688179"
        },
        "InputRequest":{
            "DisplayOutput":{
                "Device":"CustomerDisplay",
                "InfoQualify":"Display",
                "OutputContent":{
                    "OutputFormat":"Text",
                    "PredefinedContent":{
                        "ReferenceID":"MenuButtons"
                    },
                    "OutputText":[
                        {
                            "Text": "Subscribe to the following channels?"
                        }
                    ]
                },
                "MenuEntry": [
                    {
                        "OutputFormat": "Text",
                        "OutputText": [
                            {
                                "Text": "Email"
                            }
                        ]
                    },
                    {
                        "OutputFormat": "Text",
                        "OutputText": [
                            {
                                "Text": "SMS"
                            }
                        ]
                    },
                    {
                        "OutputFormat": "Text",
                        "OutputText": [
                            {
                                "Text": "Post"
                            }
                        ]
                    }
                ]
            },
            "InputData": {
                "Device": "CustomerInput",
                "InfoQualify": "Input",
                "InputCommand": "GetMenuEntry",
                "MaxInputTime": 60,
                "MinLength": 0,
                "MaxLength": 3
            }
        }
    }
}