UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'j6u9JngCgAZU0WxSjTgKfzuJuNX5Pl7iw6Xf5PZS0Bg=' 
WHERE 
  key_id = '81f849f13036a1f2150dec86e734b2933896a6f1882d150d5aa601648fd89843' 
  AND (
    token = 'j6u9JngCgAZU0WxSjTgKfzuJuNX5Pl7iw6Xf5PZS0Bg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )