UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'lk6MDRpKrDb2kKsq0m5aHdufi0tiHt0j6D6iXwKRFEU=' 
WHERE 
  key_id = '3c1c1a7dffc2f92d3798f00a9d6bb84089624ebb70c8a3f5c4f1b7d666724392' 
  AND (
    token = 'lk6MDRpKrDb2kKsq0m5aHdufi0tiHt0j6D6iXwKRFEU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )