UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'BVKwWpXK93ofkhdZ3Ecq7UFHov69UFVh+UiTnuzFebk=' 
WHERE 
  key_id = '51dd9adb5841a0443c2481b3d340b1a9c27bad914890880956220f025f120247' 
  AND (
    token = 'BVKwWpXK93ofkhdZ3Ecq7UFHov69UFVh+UiTnuzFebk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )