Extrinsic 40507-1

{
  "heartbeat": {
    "blockNumber": 40505,
    "sessionIndex": 675,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x0614af9da0a4b5947d98567569a54926c5a519e9e12187897d510c23d712fb7522a3693f404aa824c5bc79f292fc3b348884177991fc12d186a13b814e1d5487"
}