Extrinsic 68494-1

{
  "heartbeat": {
    "blockNumber": 68493,
    "sessionIndex": 1141,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x405e7e0c9126da7c2e2e3a3ae727eb308318badec461ce24e8e8c90e33d8d73c711e68a426f106efb0002700e0fa63f73a00f1b36bcabb654a9e2e94525ad88b"
}