{:ok, user} = ActivityPub.make_user_from_ap_id(user_id)
assert user.ap_id == user_id
assert user.nickname == "admin@mastodon.example.org"
{:ok, user} = ActivityPub.make_user_from_ap_id(user_id)
assert user.ap_id == user_id
assert user.nickname == "admin@mastodon.example.org"