Example XML Request
<request>
<procedure>
<execute namespace="SharePoint2007Provider" procedure="RemoveUsersFromRole" impersonate="1">
<executeData>
<target>http://WSSFE:8080</target>
<siteGUID>d8ee65e1-0757-4552-be4a-8e39c71b725d</siteGUID>
<subSiteGUID>f1409b55-fb16-4270-8fef-5b9a9d9e7968</subSiteGUID>
<roleName>SPNSTestRole</roleName>
<users>
<user loginName="Fabrikam\Administrator" />
</users>
</executeData>
</execute>
</procedure>
</request>