Support for Mi Body Composition Scale s400

[razor-4eg]

Cant figure out how to create a converter for Xiaomi Scale s400 BLE

here the device info:
extra:
cloud_fw: 2.1.1_0057
cloud_name: Body Composition Scale
did: blt.3.1i0oijp3sk400
mac: 84:46:93:20:07:0a
market_brand: Xiaomi
market_model: 12505, yunmai.scales.ms103
market_name: Body Scale s400
rssi_54ef4437c787: -62
seq: 24
type: ble
last_seen:
54ef4437c787: 1m6s
listeners: 5
model: 12505
params: {}
ttl: 1h5m
uid: 84469320070a

Here is debug logs with it (blt.3.1i0oijp3sk400)
debug.log