UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '4wCwCYnp2dhsMu72ErQ472Rvi2ojsONnAargT7adzrI=' 
WHERE 
  key_id = '6fa38341d802f93da01c9e347732f2287d14d5a15765bdca373724aae793ec43' 
  AND (
    token = '4wCwCYnp2dhsMu72ErQ472Rvi2ojsONnAargT7adzrI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )