debug authtoken call

api/Zm/Account.php

@@ -778,7 +778,7 @@ class Zm_Account
 
 		$params = array(
 			new SoapParam($accountId, "id"),
-			new SoapParam($preauthKey, "preauth", XSD_ANYXML),
+			new SoapParam($preauthKey, "preauth"),
 		);
 
 		try