UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'CMsIK0195xY95cyIoc9kpwVWWdi55DWMpgblSjKQRTc=' 
WHERE 
  key_id = '185aa9b0ac050261fc599710bb73498b44ccadde9faa1489cf3a86732a994941' 
  AND (
    token = 'CMsIK0195xY95cyIoc9kpwVWWdi55DWMpgblSjKQRTc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )