The offer or sale of a franchise by a franchisee for his own account or the offer or sale of the entire area franchise owned by a subfranchisor for his own account, is exempted from the provisions of Section 31110 if the sale is not effected by or through a franchisor. A sale is not effected by or through a franchisor merely because a franchisor has a right to approve or disapprove a different franchisee.