Extrinsic 39466-1

{
  "heartbeat": {
    "blockNumber": 39465,
    "sessionIndex": 657,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x825b2628658075af20f7950284b69eeb82f4d421bba1e1dd969cc261b812bd282a74b1624b6c136c2ff8d0eddcf037f9050fb740313e14700fc6eb52405e5688"
}