{
    "customerNumber": {
        "value": 10001
    },
    "documentDate": {
        "value": "/Date(1573171200000)/"
    },
    "hold": {
        "value": false
    },
    "invoiceLines": [
        {
            "operation": "Insert",
            "lineNumber": {
                "value": 0
            },
            "inventory": {
                "value": "nonstocktest"
            },
            "quantity": {
                "value": 1
            },
            "manualAmountInCurrency": {
                "value": 10
            },
            "description": {
                "value": "string"
            },
            "sub": [
                {
                    "segmentId": 1,
                    "segmentValue": "01"
                },
                {
                    "segmentId": 2,
                    "segmentValue": "001"
                },
                {
                    "segmentId": 3,
                    "segmentValue": "1"
                }
            ],
            "UOM": {
                "value": "STK"
            },
            "project": {
                "value": "X"
            }
        }
    ]
}