Extrinsic 24345-1

{
  "heartbeat": {
    "blockNumber": 24343,
    "sessionIndex": 405,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0x580f70e075ae2e656336c4844ef2675171bbf886a2eec6fd7f562bba239c2e1774688d7af671b7da5b5d5c555aa543f8831b150c62d3dfd0e215bbf09eddbd87"
}