UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'E36DoNTE9QoZBVqlJUIpCfydujaJafj53aEysbuUYDk=' 
WHERE 
  key_id = 'dfdc7c949f331c392bbc8bbd34417bb31c1b440fc7b6dd2999949e674fbd3f7b' 
  AND (
    token = 'E36DoNTE9QoZBVqlJUIpCfydujaJafj53aEysbuUYDk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )