UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '68K2OhkzKi04AOtApJuzByJyb3HY1mth8UfNsZGnnMA=' 
WHERE 
  key_id = '563a6d54189ad37a604be671f148d434a4f85e8d78b2b9caa0bd93b24b92a0b4' 
  AND (
    token = '68K2OhkzKi04AOtApJuzByJyb3HY1mth8UfNsZGnnMA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )