Current Subscriptions:
{foreach:aSubscribedLists,key,oSubscribedList} {oSubscribedList.list} (unsubscribe)
{end:}

Available Subscriptions:
{foreach:aUnsubscribedLists,key,aUnsubscribedList} {aUnsubscribedList[name]} - {aUnsubscribedList[description]} (subscribe)
{end:}