Laravel sync() pivot column with an array of values as extra field

I have three tables and a pivot table:

Company

roleuserable_id
roleuserable_type

User

user_id

Role

role_id

Starting from the company i have relationship

public function roles()
{
   return $this->morphToMany('App\Role', 'roleuserable', 'role_user')->withPivot('user_id');
}

How can i achieve something similar to this knowing that the block below will result with an error:

// The company
$company = Company::first();

// Sync data
$data = [
  1 => [[user_id => 1], [user_id=>2]],
  2 => [[user_id => 1], [user_id => 3]]
];

// Data sync
$company->roles()->sync($data);

via Chebli Mohamed