UPDATE 
  vi_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'a8eMbjYm1Wt2IEvhDlZSYlka2OZu6RqtydlA18JfAWI=' 
WHERE 
  key_id = '596e7c3c1c3c863caa9e5dfa9cbfc9fe386557e4eda732eb247bfae95e0ee5e9' 
  AND (
    token = 'a8eMbjYm1Wt2IEvhDlZSYlka2OZu6RqtydlA18JfAWI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )