Any officer or employee having rendered service for the state or any county, city or any municipality or for any public school district or for any private school, college or university receiving public funds who shall knowingly receive and convert to his or her use any payment for such services without having subscribed and filed an oath as prescribed by this act shall be deemed guilty of a felony and upon conviction thereof shall be punished by confinement and hard labor not exceeding five years or in the county jail not less than six months.