```ruby
# encoding: utf-8

class Api::Auth::AccountsController < Api::AccountsController
  include ApiAuthenticated

  api_versions :v1

  represent_with Api::Auth::AccountRepresenter

  filter_resources_by :user_id

  def after_create_resource(res)
    account_user = User.find(params['user_id'])
    account_user.individual_account = res
  end

  private

  def resources
    self.resources = decorate_query(resources_base)
  end

  def resources_base
    authorization.token_auth_accounts
  end
end
```

Allow creating accounts without user associated
user
```ruby
# encoding: utf-8

class Api::Auth::AccountsController < Api::AccountsController
  include ApiAuthenticated

  api_versions :v1

  represent_with Api::Auth::AccountRepresenter

  filter_resources_by :user_id

  def after_create_resource(res)
    return unless params['user_id']
    account_user = User.find(params['user_id'])
    account_user.individual_account = res
  end

  private

  def resources
    self.resources = decorate_query(resources_base)
  end

  def resources_base
    authorization.token_auth_accounts
  end
end
```
assistant