Extrinsic 45276-1

{
  "heartbeat": {
    "blockNumber": 45274,
    "sessionIndex": 754,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0xdea37be367ceec04ccd0a772918ec69fa52276ac26ed523f9f1696357f7bac35ae2e8c2a08f6d8f2cedcb6397b0335673b5ff56c76e4295a615c382a3f5d2685"
}