UPDATE 
  vi_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '/Nk+gNBgmJ+qS6Jbih98F7Az/GN3HgBGKDAz9Y0wkSc=' 
WHERE 
  key_id = '5a50454feb9b2c839faf670e95e7c2fe027558642bd957eeaa7d9dfbbd727ce2' 
  AND (
    token = '/Nk+gNBgmJ+qS6Jbih98F7Az/GN3HgBGKDAz9Y0wkSc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )