Extrinsic 67294-1

{
  "heartbeat": {
    "blockNumber": 67293,
    "sessionIndex": 1121,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x9c5ef47bfa91778f1d5ae201d31fd46c31868a61a0e83629c30782051ede1e435d685fe575e93ddcfa63f5592a50a15c7188347a082b5a938259a13c7ab3f684"
}