code: public Subscription getSubscription(final String uuid) {
          if (uuid == null || uuid.isEmpty())
              throw new RuntimeException("uuid cannot be empty!");
  
          return doGET(Subscriptions.SUBSCRIPTIONS_RESOURCE
                       + "/" + uuid,
                       Subscription.class);
      }
docs: Get a particular {@link Subscription} by it's UUID
  <p>
  Returns information about a single subscription.
  
  @param uuid UUID of the subscription to lookup
  @return Subscription