Is your client aware of its typology? Ie. it can do something like this:

Code:
var liverateId = "lmxtrade"; // 
var liverateSubscription = new Subscription("COMMAND",liverateId,fieldList);
liverateSubscription.setDataAdapter("ABQUOTE_ADAPT ER");
liverateSubscription.setRequestedSnapshot("yes");
liverateSubscription.addListener(liverateGrid);
lsClient.subscribe(liverateSubscription);
If yes the subscribe method should be something similar to this:

Code:
Override public void subscribe(String itemName) throws SubscriptionException, FailureException {
logger.debug("Subscribing to " + itemName);
if (itemName.startsWith("lmxtrade")) {
 // push only "client":"lmxtrade" elements
 } else if (itemName.startsWith("kkvtrade")) {
 // push only "client":"kkvtrade" elements
 }
}