UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '5U3cLZHuevSiKUXSAQjl6zGVBfK6dvhRW3foav5ty6A=' 
WHERE 
  key_id = '840fec49dfb4e9576f2f411a86eabba74837678423f9d80947b6d980e4f68ca1' 
  AND (
    token = '5U3cLZHuevSiKUXSAQjl6zGVBfK6dvhRW3foav5ty6A=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )