UPDATE 
  vi_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'lUZZnqATUlcv9ML/s7iElkHiSrNbit7zWujf1+WbQKk=' 
WHERE 
  key_id = '520be5287ae9dc8eb4affc93145126388d1ec3879654b0a1b4a0c8be758c57a4' 
  AND (
    token = 'lUZZnqATUlcv9ML/s7iElkHiSrNbit7zWujf1+WbQKk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )