Extrinsic 39342-1

{
  "heartbeat": {
    "blockNumber": 39341,
    "sessionIndex": 655,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0x8898ed059ad3eb912c9356a19e372a16927e669370c84d7e0839ef1d158a5f5ae322f9d874bdfe398ebe46e10325fe6dcec17570d4e4243096e809e119c5db85"
}