AdvertiserUserEntity

{
    "_id": "123e4567-e89b-12d3-a456-426614174000",
    "name": "Alice Smith",
    "email": "alice@example.com",
    "advertisers": [
        {
            "id": "b1e2c3d4-5678-1234-9abc-1234567890ab",
            "name": "Acme Corp"
        }
    ]
}