No such lien may be dissolved until reasonable notice of the application, in writing, signed by the applicant or his attorney, has been served upon the lienor or left at his usual place of abode or such other reasonable notice as the judge may order has been given. Any person interested may be heard in relation to the amount and sufficiency of the bond offered by the applicant. The bond shall be in amount not less than the amount claimed by the lienor, unless it appears to the authority to whom the application is made that the amount so claimed is excessive, in which event he may order the bond to be in such amount as he deems reasonable.