The department may grant licenses upon application and the payment of the prescribed fees to matchmakers, managers, referees, boxers, unarmed combat sports contestants, seconds, and timekeepers in professional contests and amateur unarmed combat sports contests. The fees to be paid per year shall be: Matchmakers and managers, $10; referees and judges, $15; examining physicians, $10; boxers and unarmed combat sports contestants, $40; seconds, $40; and timekeepers, $10. The department may limit, suspend, or revoke any license granted under this section or reprimand the licensee upon such cause as it deems sufficient.