Extrinsic 31779-1

{
  "heartbeat": {
    "blockNumber": 31777,
    "sessionIndex": 529,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x4ef4e17156e2b57b502defda00e741e566a0bdae4212530b4f2c77c7bbb5a55a37892d88ebd275362cb6ea731214b28fa7e1ab5077164d285d69fb2b67b0d583"
}