Extrinsic 9748-1

{
  "heartbeat": {
    "blockNumber": 9746,
    "sessionIndex": 162,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0xf4b8dadcce55d62209324a66518e2b1c790d1590682d4ed60a69b60a1c6b072cbf218d73406395cf4b725c3436b9a4d4f039dc704c9b10634a0d5b17ca364386"
}