<?xml version="1.0" encoding="UTF-8"?><sl:CreateXMLSignatureRequest xmlns:sl="http://www.buergerkarte.at/namespaces/securitylayer/1.2#">  <sl:KeyboxIdentifier>SecureSignatureKeypair</sl:KeyboxIdentifier>  <sl:DataObjectInfo Structure="enveloping">    <sl:DataObject>      <sl:XMLContent>Ich bin ein einfacher Text.</sl:XMLContent>    </sl:DataObject>    <sl:TransformsInfo>      <sl:FinalDataMetaInfo>        <sl:MimeType>text/plain</sl:MimeType>      </sl:FinalDataMetaInfo>    </sl:TransformsInfo>  </sl:DataObjectInfo></sl:CreateXMLSignatureRequest>