Deserialization of a foreign key with a name other than the field name.

[smoothbronx]

Good day to the community and the author.
There is such a request to my server:

{
   ...
    "https://example.com/username": "username",
   ...
}

I need to deserialize it so that in the automatically generated scheme this key remains the same "https://example.com/username", but in the serializer itself it is displayed as username. Can you give advice on how to do it correctly and is it possible to do it at all?