Extrinsic 176899-1

{
  "heartbeat": {
    "blockNumber": 176897,
    "sessionIndex": 2948,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0xe207d0b24fe749b3e3319db5d2656328114850ef78e09ba85b0658c459f0d87c8efc6cfbc35f98e51e9495c186aea3ae2cbdce1d3908e9a56f4b2472272e8d82"
}