How to update a single-cell value in plotly dash ag grid?

Dash Python
1 
curves_grid = dash.Dash(__name__, external_stylesheets=[dbc.themes.LITERA])

# Define the layout of the app
gbp_curves_grid.layout = html.Div([
    dag.AgGrid(
        id='curves_grid',
        columnDefs=[
            {'field': 'A', 'editable': False},
            {'field': 'B', 'editable': True},
            {'field': 'C', 'editable': False, "cellRenderer": "agAnimateShowChangeCellRenderer"},
            {'field': 'D', 'editable': False},
        ],
        rowData=df_curves.to_dict("records"),
        enableEnterpriseModules=True,
        getRowId="params.data.id",
    ),

])

@curves_grid.callback(Output('curves_grid', 'rowTransaction'), 
                          Input('curves_grid', 'cellValueChanged'),
                         prevent_initial_call=True,)
def update_close(row_changed):

    if row_changed: row_changed[0]['data']['D'] = 40
    
    return {"update": row_changed}