我应该如何构造这个嵌套的JSON数据库，以便导入到firebase firestore中？

{
  "users": {
    "user1": {
      "name": "John",
      "age": 25,
      "email": "john@example.com",
      "address": {
        "street": "123 Main St",
        "city": "New York",
        "country": "USA"
      },
      "orders": [
        {
          "id": "order1",
          "product": "Product A",
          "quantity": 2
        },
        {
          "id": "order2",
          "product": "Product B",
          "quantity": 1
        }
      ]
    },
    "user2": {
      "name": "Jane",
      "age": 30,
      "email": "jane@example.com",
      "address": {
        "street": "456 Elm St",
        "city": "San Francisco",
        "country": "USA"
      },
      "orders": [
        {
          "id": "order3",
          "product": "Product C",
          "quantity": 3
        }
      ]
    }
  }
}