UPDATE 
  vi_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'VtLh+HOfm/Cfaq/kSrUJ7RExvTI8jJYzboYnxcvipRg=' 
WHERE 
  key_id = '4d924dcf91a6471905eee5fa1fe8a37668892896c1b506e63f775ef89d457756' 
  AND (
    token = 'VtLh+HOfm/Cfaq/kSrUJ7RExvTI8jJYzboYnxcvipRg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )