How do I dictionaries inside dictionary

{
  "c2dictionary": true,
  "data": [
    {
      "id": null,
      "nick": "MyFirstPlayer",
      "posX": 340,
      "posY": 295
    },
    {
      "id": null,
      "nick": "MySecondPlayer",
      "posX": 340,
      "posY": 295
    }
  ]
}
[/code:kn0syv5k]

How can i do to handle this json on construct 2? 
When i put this json to my dictionary i have -> key: "0" , value: "[object Object]" i dont know how get this "object" as a dictionary. Someone had such a problem?