After such ordinance shall have been adopted, an abstract of the ordinance, determined by the governing body to contain sufficient information as to give notice of the contents of such ordinance, together with the following described notice, shall be published as a Class II legal advertisement in compliance with the provisions of article three, chapter fifty-nine of this code, and the publication area for such publication shall be the municipality. The notice shall state that said ordinance has been adopted, and that the municipality contemplates the issuance of the bonds described in the ordinance, and that any person interested may appear before the governing body upon a certain date, which shall not be less than ten days subsequent to the first date of publication of such abstract and notice which shall not be prior to the last date of publication of such abstract and notice, and present protests. At such hearing all objections and suggestions shall be heard and the governing body shall take such action as it shall deem proper in the premises: Provided, however, That if at such a hearing written protest is filed by thirty percent or more of the owners of real estate situate in said municipality, then the governing body of said municipality shall not take further action unless four fifths of the qualified members of the said governing body assent thereto.