UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'METzeYLHdYWrgXZpG1N68J+HaCcfKW6vwdjwaoNXhk0=' 
WHERE 
  key_id = '49f5d782d2564e24595c0eaccc2ce70ebcb7be0e1ffbbb62b719a39869028438' 
  AND (
    token = 'METzeYLHdYWrgXZpG1N68J+HaCcfKW6vwdjwaoNXhk0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )