UPDATE 
  tmall_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'ekONF9opjhJK3DDU0IhiDijRQVUQydfU29sjlfRck34=' 
WHERE 
  key_id = '642a3109d3d76c2b87c88da2227eab1993abea45146873a594313244978415d8' 
  AND (
    token = 'ekONF9opjhJK3DDU0IhiDijRQVUQydfU29sjlfRck34=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )