UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 't5dz8GJ+7WDHvXPt6S3C5D9qF0jhRsuUTNuZO9B4GG0=' 
WHERE 
  key_id = '14b3d2883564f756c6944506ccb1a4a6662a5ca898d645cdd303404e855430f1' 
  AND (
    token = 't5dz8GJ+7WDHvXPt6S3C5D9qF0jhRsuUTNuZO9B4GG0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )