using System.Collections.Generic;
var my_data = new Dictionary<string, object> {
    ["name"] = "Alice",
    ["scores"] = new Dictionary<string, string> {["1"] = "first", ["2"] = "second"}
};
my_data = new Dictionary<string, object> {
    ["name"] = "Alice",
    ["scores"] = new Dictionary<string, string> {["1"] = "first", ["2"] = "second"}
};
