Extrinsic 24446-1

{
  "heartbeat": {
    "blockNumber": 24445,
    "sessionIndex": 407,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x4caa56e5650cdb656d430971a042ecaf800047163242071329f2ad3502719b52241822c5226b55b81c948a64c3184c4d5ace918be6bc69a7c1236445c3aa8288"
}