Extrinsic 177703-1

{
  "heartbeat": {
    "blockNumber": 177702,
    "sessionIndex": 2961,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0xd0bd6d68631d700ed689a316f993ac531d6cf320ae1c69ae6bfe331b3fb3f355186a228cc1286f2d305187f05d0a68bb2b5c4868024af134a4b6d59cb322f88c"
}