UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'k7q8YbWmqY4Xn/qb6TMcOWBZV6cTiSvaTR31LUz8liU=' 
WHERE 
  key_id = '49d5efec384090785bf43f661f347d52854d9af7f8cf7853a4031b7a142e31c9' 
  AND (
    token = 'k7q8YbWmqY4Xn/qb6TMcOWBZV6cTiSvaTR31LUz8liU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )