...
<saml2:AttributeValue xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xs="http://www.w3.org/2001/XMLSchema" xsi:type="xs:string"> 7803e459-881d-416f-a57c-4ce5eda0b79b@example4ce5eda0b79b@example.org </saml2:AttributeValue>
...