Extrinsic 24673-1

{
  "heartbeat": {
    "blockNumber": 24671,
    "sessionIndex": 411,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x18999c5990350a5ca37ee0d55c535854b04b3231d23c605d23d36c8e87a1852c133fed841b4c164579085abb6305e9dd6294b12060826dd3c3ea0e3e6014688c"
}