"Governmental entity" means this state or any of its instrumentalities, political subdivisions, or districts of whatever type or nature including, but not limited to, school districts, cities, counties, taxing districts, or other entities, as well as any instrumentality of one (1) or more of the foregoing or that is jointly owned by this state or a political subdivision thereof and one (1) or more other states or political subdivisions of this or other states, if service for any such governmental entity is excluded from "employment" as defined in the federal unemployment tax act, 26 U.S.C. § 3306(c)(7).