Extrinsic 66945-1

{
  "heartbeat": {
    "blockNumber": 66944,
    "sessionIndex": 1115,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x36ce4e167a1804be146160d867ec237427920802d78d102511d15eb25daf322b1dde20742b2d07ef5708c31fa51339c6336cd02afa169c04ac61599000ad668e"
}