UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MnlpfB7IbOXqqXT5Dwtbj9N5zXjEBSL4h7GhfU0rxQk=' 
WHERE 
  key_id = '51cb8768ee3e8268f76c632cfc3cb4ddfc3456f5a5b81357087fe66d0d2e64e2' 
  AND (
    token = 'MnlpfB7IbOXqqXT5Dwtbj9N5zXjEBSL4h7GhfU0rxQk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )