Date inside object in mongo db does not work with DictField

[Eduardo Rios Corlay]

Hello, I have been trying to find a way to make this work, the problem is my mongodb object has a Date as one of the inner elements of an object:

date: {
     type: "dateAdded",

      content: 2022-01-18T21:04:24.810+00:00
}

When defininf the model as (date = DictField() ) I get an error when running a query saying "Object of type datetime is not JSON serializable". I have been trying to find a way to make this work but documentation and online examples do not seem to help me, I tried with EmbeddedDocument, MapField, and so on but I cannot find a correct way to do it or make it work. Any advice?