Extrinsic 34338-1

{
  "heartbeat": {
    "blockNumber": 34337,
    "sessionIndex": 572,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0xa0172d531dcf62457ae0b6e5683b9e85e5fd80bb96d5a85a87837ead8b205049c0a3266ab06a6d432f0ea05cc3bfd097b5f23da345f96703cfd79eba12527a84"
}