UPDATE 
  tmall_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'DAxT4Un3OM4555zrYa/H1+1sxFyunmpuXP0XM/txCEc=' 
WHERE 
  key_id = 'c7121d73253d53dc1c4ad8c815cec8353076cd923b71ebf1896d186d6f534824' 
  AND (
    token = 'DAxT4Un3OM4555zrYa/H1+1sxFyunmpuXP0XM/txCEc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )