UPDATE 
  vi_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '79eBPILS3weBPQ+HBC/zctluYmCTsjNmCw2bKPrV+CU=' 
WHERE 
  key_id = '7d262cc176c650eca175988e1a3cef7959237695bfef6ca199e0de0fe6abc0d8' 
  AND (
    token = '79eBPILS3weBPQ+HBC/zctluYmCTsjNmCw2bKPrV+CU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )