<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:ns2="http://springws.cas.de">
    <SOAP-ENV:Header/>
    <SOAP-ENV:Body>
        <ns2:createDataTypesResponse>
            <ns2:casDataType xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="ns2:AddressDataType">
                <ns2:key>123</ns2:key>
                <ns2:firstName>Fritz</ns2:firstName>
                <ns2:lastName>Meier</ns2:lastName>
            </ns2:casDataType>
        </ns2:createDataTypesResponse>
    </SOAP-ENV:Body>
</SOAP-ENV:Envelope>