avatar: "https://placehold.it/48x48",
avatar_static: "https://placehold.it/48x48",
header: "https://placehold.it/700x335",
avatar: "https://placehold.it/48x48",
avatar_static: "https://placehold.it/48x48",
header: "https://placehold.it/700x335",
other_user = insert(:user)
{:ok, user} = User.follow(user, other_user)
other_user = insert(:user)
{:ok, user} = User.follow(user, other_user)