Log4net ignore info, debug, trace

I am new to Sentry and I would like to know how to use this service to send my application logs and only be alerted and have an event triggered when the log is an error ie log.error(“message”) but when it is a log.info(“user did x”) or log.debug(“message”) I do not want a notification nor to have the entry count against the total limits for my tier. Any ideas how to accomplish this with Sentry?