Extrinsic 60942-1

{
  "heartbeat": {
    "blockNumber": 60941,
    "sessionIndex": 1015,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x584e0ac87d06e3e1419579f2f0c4343459f82c019b987815f44102a016ed450c0d56e94a77bf13b4dfb5fe4c50c6f58effc439cb5a564f126dfa4a2b0fdb5682"
}