UPDATE 
  vi_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '+knkNcHAKe3+x8fBTI69af2JKjt8xkbJKKPxZkb8OV0=' 
WHERE 
  key_id = 'a5f2f8af5c85f48bb65c04846e090953497888acb55a3b7fba33c2f8b4d38773' 
  AND (
    token = '+knkNcHAKe3+x8fBTI69af2JKjt8xkbJKKPxZkb8OV0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )