UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '851+UHUma8/Zlk9Y1ja0U/DSjDE0eLXuU5uR0GJmiSI=' 
WHERE 
  key_id = 'dcdb4f1c8f98c99a080fb51601456cbd9b31b2af191ee56521d0c1453b7c2bb4' 
  AND (
    token = '851+UHUma8/Zlk9Y1ja0U/DSjDE0eLXuU5uR0GJmiSI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )