Modelo Zeus.

orcamento.json

{
    "order":
    {
        "client": {
            "name": "Thiago",
            "phone": "3454534",
            "email": "[email protected]",
            "shipping": {"id": 1}
        },
        "orderItens":
        [
          {
            "itemType": {"id": 1},
            "lids": [
              {"length": 100, "width": 200, "height": 300},
              {"length": 100, "width": 200, "height": 300}
            ],
            "coif": {
              "length": 100,  "width": 300
            },
            "complement": {
              "id": 34, "height": 500
            },
            "details": [ {"id": 98}, {"id": 99}, {"id": 97} ],
            "tap": {"id": 300},
            "rock": {"id": 400}
          },
          {
            "itemType": {"id": 2},
            "lids": [
              {"length": 100, "width": 200, "height": 300},
              {"length": 100, "width": 200, "height": 300}
            ],
            "complement": {
              "id": 34, "height": 500
            },
            "details": [ {"id": 98}, {"id": 99}, {"id": 97} ],
            "tap": {"id": 300},
            "rock": {"id": 400}
          },
          {
            "itemType": {"id": 3},
            "lids": [
              {"length": 100, "width": 200, "height": 300},
              {"length": 100, "width": 200, "height": 300}
            ],
            "complement": {
              "id": 34, "height": 500
            },
            "details": [ {"id": 98}, {"id": 99}, {"id": 97} ],
            "tap": {"id": 300},
            "rock": {"id": 400}
          }
      ]
    }
}