$authorizationServiceRef = $wsmanConnectionObject.NewReference("SELECT * FROM AMT_AuthorizationService WHERE Name='Intel(r) AMT Authorization Service'")
$inputObject = $authorizationServiceRef.CreateMethodInput("AddUserAclEntryEx")
$inputObject.SetProperty("KerberosUserSid", "AQUAAAAAAAUVAAAAVcoTQfagZTk1F8IXVgQAAA==")
$inputObject.SetProperty("AccessPermission", "2") # 2 = any access permission. 
$inputObject.AddProperty("Realms", "2") # 2 = Redirection realm. 
$outputObject = $authorizationServiceRef.InvokeMethod($inputObject)
$returnValue = $outputObject.GetProperty("ReturnValue")
if($returnValue -like "0")
{
	$handle = $outputObject.GetProperty("Handle")
}