Extrinsic 40308-2

{
  "heartbeat": {
    "blockNumber": 40306,
    "sessionIndex": 671,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x6265cf549537d6bd5c84901bef30d787d27bcab364b34da1ae5a10ab1c414763ec0086546e3418683eed9919211df3fccd4baef67e9c4379cff8be4f9852ad8f"
}