As against the interests of third parties acting in good faith and without notice who may have acquired a transfer or lien binding any real estate, no attachment levied upon real estate shall be a lien on the same from the levy thereof unless said attachment is entered upon the attachment docket of the county in which the real estate is situated within five days from said levy. When the attachment is entered upon the docket after the five days, the lien shall date from such entry; and it shall be the duty of the sheriff to have said entry made within the five days. Nothing in this Code section shall be construed to affect the validity or force of any attachment as between the parties thereto.