UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Kgl7Ve3KewzrzLcgfmUkKqVTplzaB9iCeZPdtt2qgGY=' 
WHERE 
  key_id = '81942da5ecdedf02b441d4f8eaf896260a343854a8a6a55cfe9f7114532c24c2' 
  AND (
    token = 'Kgl7Ve3KewzrzLcgfmUkKqVTplzaB9iCeZPdtt2qgGY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )