UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'gz+5nX6uYP6wxhEjTsDONcH4lUiLe9RHBnnUtN9EkmY=' 
WHERE 
  key_id = '495ff6aff098f815f32bcadb32b40991901c1484c7a4aae8920f42f37ee5258d' 
  AND (
    token = 'gz+5nX6uYP6wxhEjTsDONcH4lUiLe9RHBnnUtN9EkmY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )