在golang中以JSON格式获取xwwwformurlencoded请求的嵌套键值对

x-www-form-urlencoded

name=abc&age=12¬es[key1]=value1¬es[key2]=value2

url.ParseQuery("name=abc&age=12¬es\[key1\]=value1¬es\[key2\]=value2")

{
  "name": "abc",
  "age": 12,
  "notes[key1]": "value1",
  "notes[key2]": "value2"
}

如何获取上述正文的以下JSON格式的值

{
  "name": "abc",
  "age": 12,
  "notes": {
    "key1": "value1",
    "key2": "value2"
  }
}

备注可能采用3级嵌套格式

url.ParseQueryr.Formnotes[key1]notes[key2]