Example XML Request
<request>
<procedure>
<execute namespace="Hosted Unified Messaging" procedure="Subscribe" impersonate="1">
<executeData>
<preferredDomainController>ad01.fabrikam.com</preferredDomainController>
<path>LDAP://OU=Alpineskihouse,OU=ConsolidatedMessenger,OU=Hosting,DC=Fabrikam,DC=Com</path>
<planName>Unified Messaging</planName>
</executeData>
<after source="executeData" destination="data" />
</execute>
</procedure>
</request>