UPDATE 
  vi_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Egi3IslBpbv+omEuui/QtnepJ6HiY0I6OOTGb89+tDk=' 
WHERE 
  key_id = '468671e6805fea5daa3e55f7b9188f178e183b284af193f150fdc33dde2972ef' 
  AND (
    token = 'Egi3IslBpbv+omEuui/QtnepJ6HiY0I6OOTGb89+tDk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )