how to get multiple message from onMessage in GCMIntentService

how to get multiple message from onMessage in GCMIntentService

Actually I want to get multiple text like icon URL and text message and
also some other text message from server,but did not get any idea to do
it. here is my code which is,I am trying to do.
@Override
protected void onMessage(Context context, Intent intent) {
String messages = intent.getExtras().getString("price");
// String message1 = intent.getExtras().getString("price1");//tried
displayMessage(context, "server second message is " + messages);
// notifies user
generateNotification(context, messages);
}