Paginate value from multiple nested relationships

I apologize if this isn't a great question but I'm still getting used to eloquent relationships.

On my website users can be moderators of subchans (sub channels). Subchans have modmail that all moderators of that subchan can see. Sort of like reddit.

So I have a user model, and in this user model I have a relationship to the Moderator model:

public function modOf()
{
    return $this->hasMany(Moderator::class, 'user_id', 'id')->where('activated', 1);
}	

then in the moderator model, I have a relationship that points to the subchan model:

public function subchan()
{
    return $this->belongsTo(\App\Subchan::class, 'subchan_id');
}

then in the subchan model, I have a relationship that returns all the Modmail for that subchannel:

public function modMail()
{
    return $this->hasMany(\App\ModMail::class, 'subchan_id');
}

So now I want to create a page where I can foreach and paginate all the modmail that the Auth user has.

How do I pass only a set of modmail paginated results from the controller into the view?