UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'pwUSOO5/m0ugPQyISLeBRERBWabQq0d8jznkPrs4I+Q=' 
WHERE 
  key_id = '1be82b7bc3d801ca66908ece5246e291375a971729cf79796fdefc0764616602' 
  AND (
    token = 'pwUSOO5/m0ugPQyISLeBRERBWabQq0d8jznkPrs4I+Q=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )