Extrinsic 147276-1

{
  "heartbeat": {
    "blockNumber": 147274,
    "sessionIndex": 2454,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0xe2e7b6d97ede890bdcdf360048bb0d6ad1ef1ab5bd6e6e96891e08a650f3ae2ab09ab86ec2382d110482e626b101a497b052c96f947dda20fd92a8d1e69ba585"
}