import { buildClient } from '@datocms/cma-client-node';
async function run() {
  const client = buildClient({ apiToken: '<YOUR_API_TOKEN>' });
  
  const userId = '312';
  
  const user = await client.users.update(userId, {
    is_active: true,
    role: {
      type: 'role',
      id: '34'
    }
  });
  
  console.log(user);
}
run();

{
  id: '312',
  email: 'mark.smith@example.com',
  is_2fa_active: true,
  full_name: 'Mark Smith',
  is_active: true,
  meta: {
    last_access: '2018-03-25T21:50:24.914Z'
  },
  role: {
    type: 'role',
    id: '34'
  }
}