Example DRF Prefix Mixin for accepted a dict() that might have a model prefix.

drf_prefix_mixin.py

class PrefixedMixin:
    def __init__(self, *args, **kwargs):
        self._prefix = kwargs.pop("prefix", None)
        super().__init__(*args, **kwargs)

    def to_internal_value(self, data):
        """Dict of native values <- Dict of primitive datatypes."""
        if self._prefix:
            data = {
                key.replace(f"{self._prefix}_", ""): value
                for key, value in data.items()
                if key.startswith(self._prefix)
            }
        data = super().to_internal_value(data)
        return data

    def to_representation(self, instance):
        """Object instance -> Dict of primitive datatypes."""
        if self._prefix:
            return {
                f"{self._prefix}_{key}": value
                for key, value in super().to_representation(instance).items()
            }
        return super().to_representation(instance)