post
https://api.zan.top/node/v1/eth/mainnet//eth/v1/validator/beacon_committee_subscriptions
Signal beacon node to prepare for a committee subnet.
After beacon node receives this request,
search using discv5 for peers related to this subnet
and replace current peers with those ones if necessary
If validator is_aggregator, beacon node must:
- announce subnet topic subscription on gossipsub
- aggregate attestations received on that subnet
Slot signature is valid and beacon node has prepared the attestation subnet.
Note that we cannot be certain the Beacon node will find peers for that subnet for various reasons.