UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'QB1P6l7+WDggnomKy67wX54GfBLGmMMGjBzUEDdzPOE=' 
WHERE 
  key_id = '6981042fb6934e9bb4da607968a4f2b1757b5c6c1f9ce82cce2d7a0df64a26a4' 
  AND (
    token = 'QB1P6l7+WDggnomKy67wX54GfBLGmMMGjBzUEDdzPOE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )