Extrinsic 23208-1

{
  "heartbeat": {
    "blockNumber": 23206,
    "sessionIndex": 386,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0xb06464887ea007183864f42decdcfa94b3a3808204312108eefe29f02b43c0779ffb0bcd9b30c20bbdf0341de854d15d6cad41548030327144bdc84ae72ae789"
}