implement CE140 Segment shard request #282
Description
https://github.com/zdave-parity/jam-np/blob/main/simple.md#ce-139140-segment-shard-request
low priority as we don't need this for internal testnet
{{ message }}
https://github.com/zdave-parity/jam-np/blob/main/simple.md#ce-139140-segment-shard-request
low priority as we don't need this for internal testnet