UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6nHb15mDrXljITICYBqaKqk0tjWpAfdGUbSfl/PrKI8=' 
WHERE 
  key_id = '4c6d2e6711db8ee823deb6e56c765592887494dc5755ff0adb768a32fb6ffd7c' 
  AND (
    token = '6nHb15mDrXljITICYBqaKqk0tjWpAfdGUbSfl/PrKI8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )