public static void main(String[] args) throws IOException {
Exchange coinbase = CoinbaseDemoUtils.createExchange();
CoinbaseAccountService accountService = (CoinbaseAccountService) coinbase.getPollingAccountService();
CoinbaseSubscriptions subscriptions = accountService.getCoinbaseSubscriptions();
System.out.println(subscriptions);
List<CoinbaseSubscription> subscriptionsList = subscriptions.getSubscriptions();
if (!subscriptionsList.isEmpty()) {
CoinbaseSubscription subscription = subscriptionsList.get(0);
subscription = accountService.getCoinbaseSubscription(subscription.getId());
System.out.println(subscription);
}