Example XML Request
<request>
<procedure>
<execute namespace="SharePoint2007Provider" procedure="RemoveRole" impersonate="1">
<executeData>
<target>http://WSSFE:8080</target>
<siteGUID>72b61464-579c-4c30-b31a-f6b266ddc8ae</siteGUID>
<subSiteGUID>12c053c1-edfa-4a59-a25f-7f5c4ef43f3b</subSiteGUID>
<roleName>SPNSTestRole</roleName>
</executeData>
</execute>
</procedure>
</request>