UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'dSnkuEAHt6pSYi7SkubZZTapmp2EDmjSjNbLMmaealM=' 
WHERE 
  key_id = '16a68ef0c155cd9661121cd4a3e20fd3fe43ac428ac5aeed3bf9fd23bce8cd85' 
  AND (
    token = 'dSnkuEAHt6pSYi7SkubZZTapmp2EDmjSjNbLMmaealM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )