An overloaded version of {@link #subscribe(string, StompFrameHandler)}
with full {@link StompHeaders} instead of just a destination.
@param headers the headers for the subscribe message frame
@param handler the handler for received messages
@return a handle to use to unsubscribe and/or track receipts
An overloaded version of {@link #subscribe(string, StompFrameHandler)} with full {@link StompHeaders} instead of just a destination. @param headers the headers for the subscribe message frame @param handler the handler for received messages @return a handle to use to unsubscribe and/or track receipts