Extrinsic 66210-1

{
  "heartbeat": {
    "blockNumber": 66209,
    "sessionIndex": 1103,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x48a99680b069482302b481a2e8bfbf886f8fbc7644eee115d021ad7b52c0a41ba208adb842d4db2e26da8772e2eeefd3e8fa1fc11b4994ad78a12dfd6572e788"
}