Extrinsic 40872-1

{
  "heartbeat": {
    "blockNumber": 40870,
    "sessionIndex": 681,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0xeccb405ed5d0a7bd5cbf3c06d812d96c1b9638f3bde0b141728bbc4e196ebc68369c9aa2bdc92dbbd91eb100a623ea6866448aefb4ad841af84990eecf35a286"
}