UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'AjDkb+PBg8HLSgenjCzCvlnuF8F6D6IcwGHjeDxNaug=' 
WHERE 
  key_id = '4ac96aac4396b3ff012c939b69fde34eb63cb070e81147590867d121067c3c7e' 
  AND (
    token = 'AjDkb+PBg8HLSgenjCzCvlnuF8F6D6IcwGHjeDxNaug=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )