✅ Can't figure out json logic

internal static int GetUsers()
{
    try
    {
        var fileData = File.ReadAllText(_usersPath);
        var jsonData = JsonSerializer.Deserialize<List<UserModel>>(fileData);

        if (jsonData != null)
        {
            return jsonData.Count;
        }
        else
        {
            return 0;
        }
    }
    catch (Exception ex)
    {
        throw new Exception(ex.Message);
    }
}

{
  "something_here1": "something_here2"
}