Plotly hexbin cutoff within specified json boundary

I'm plotting a separate hexbin figure and json boundary file. The hexbin grid overlaps the boundary file though. I'm interested in displaying the African continent only. I'm aiming to cut-off or subset the hexbin grid within the African continent. So no grid square should be visualised outside the boundary file. Is there a way to achieve this using Plotly?

import numpy as np
import pandas as pd
import plotly.express as px
import plotly.graph_objs as go
import plotly.figure_factory as ff
import geopandas as gpd
import json

data = pd.DataFrame({
    'LAT': [1,5,6,7,5,6,7,5,6,7,5,6,7,12,-40,50],
    'LON': [10,10,11,12,10,11,12,10,11,12,10,11,12,-20,40,50],
    })

gdf_poly = gpd.read_file(gpd.datasets.get_path("naturalearth_lowres"))
gdf_poly = gdf_poly.drop('name', axis = 1)

Afr_gdf_area = gdf_poly[gdf_poly['continent'] == 'Africa'].reset_index(drop = True)

fig = ff.create_hexbin_mapbox(data_frame=data,
                       lat="LAT", 
                       lon="LON",
                       nx_hexagon=25,
                       opacity=0.4,
                       labels={"color": "Point Count"},
                       mapbox_style='carto-positron',
                       zoom = 1
                       )

fig.update_layout(mapbox={
        "layers": [
            {"source": json.loads(Afr_gdf_area.geometry.to_json()),
                "below": "traces",
                "type": "fill",
                "color": "orange",
                "opacity" : 0.1,
                "line": {"width": 1}
            },
        ],
    })   

fig.show()

Intended output is to cut-off or clip squares outside the African contentment, which is in orange.

from Plotly hexbin cutoff within specified json boundary