Extrinsic 41075-1

{
  "heartbeat": {
    "blockNumber": 41073,
    "sessionIndex": 684,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0x30bb47ee9a87bec1f486d5aff117215e5aaa6407bebe464b0446b5dd25c5357999efbb87ed4ae899e310239066106661d2b1ddb2dcdf7992da12007eca07c88e"
}