Extrinsic 35311-1

{
  "heartbeat": {
    "blockNumber": 35309,
    "sessionIndex": 588,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0xfcd4b4efb5ee461416135da1c72c146a7cd3da41d3ee76289bb5e06eee21b36c4fe1d02f8ca8e18ff0abd7626fb3aa58296a027698e332d6d3cdfa843b97ae8c"
}