Extrinsic 24749-1

{
  "heartbeat": {
    "blockNumber": 24748,
    "sessionIndex": 412,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0x6451d87ba43b0163123cdfcb331278c79832d2454b5ded0c2b0dd995f1b69d3c5d10f54ddd23040957fe619b5c855186e1a5fccc4f709fa083665227fe02738b"
}