UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'KLR4TbQHdbfjMlTtIS2rdyvLtYaBeWr8f/2XcXkEbPg=' 
WHERE 
  key_id = '831ccedea7ac30574ee4c4daa5e52988b8332b03d55d78624e48c824cb76f0ba' 
  AND (
    token = 'KLR4TbQHdbfjMlTtIS2rdyvLtYaBeWr8f/2XcXkEbPg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )