<?xml version="1.0" encoding="UTF-8"?><sl:CreateCMSSignatureRequest xmlns:sl="http://www.buergerkarte.at/namespaces/securitylayer/1.2#" Structure="enveloping">  <sl:KeyboxIdentifier>SecureSignatureKeypair</sl:KeyboxIdentifier>  <sl:DataObject>    <sl:MetaInfo>      <sl:MimeType>text/plain</sl:MimeType>    </sl:MetaInfo>    <sl:Content>      <sl:Base64Content>SWNoIGJpbiBlaW4gZWluZmFjaGVyIFRleHQu</sl:Base64Content>    </sl:Content>  </sl:DataObject></sl:CreateCMSSignatureRequest>