Section 40A. Every licensee holding or conducting any professional boxing or sparring match or exhibition shall, within seventy-two hours after its conclusion, pay to the state treasurer, in addition to the payment required under section forty, a sum equal to one per cent of the total gross receipts from the sale of tickets or from admission fees; provided that if such match or exhibition is conducted as an incidental feature in an event or entertainment of a different character, such portion of the total receipts shall be paid to the commonwealth as the commission may determine or as may be fixed by rule adopted under section forty-six. Said sums shall be credited by said treasurer to a fund to be known as the boxers’ fund which shall be administered by the boxers’ fund board for the use and benefit including funeral expenses of boxers or former boxers in need of assistance.

The commission shall enforce the provisions of this section.