UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6W0AjeFbtx2aq8iWOP9kLc2V/mUEhQJmTfT4oFzVKuM=' 
WHERE 
  key_id = '8e0c34250f32af380eaf605fd6774a472701ac9abb15080c7f64fb08225b03ed' 
  AND (
    token = '6W0AjeFbtx2aq8iWOP9kLc2V/mUEhQJmTfT4oFzVKuM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00054