基于API响应FieldName构造嵌套JSON结构的API载荷需求

我收到某API的响应如下：

{
  "id": 306,
  "FieldName": "customer.info.User",
}

需要基于该响应中的FieldName属性，为另一API构造请求载荷，预期输出如下：

{
  "customerList": [
    {
      "customerConditionHeader": {
        "entityType": "CORPORATIONS",
        "country": "FOR_ALL",
        "entityRole": "CUSTOMER"
      },
      "customer": {
        "info": {
          "user": "some_value"
        }
      }
    }
  ]
}

内容的提问来源于stack exchange，提问作者Shreyansh Jain