import bpy
material = bpy.context.material #(bpy.context.material.active_node_material if bpy.context.material.active_node_material else bpy.context.material)

material.pov_subsurface_scattering.radius = 11.605, 3.884, 1.754
material.pov_subsurface_scattering.color = 0.430, 0.210, 0.168