Extrinsic 45859-1

{
  "heartbeat": {
    "blockNumber": 45858,
    "sessionIndex": 764,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0xc4821e51926dce639aaaf09c35013d2d33384bdd7948e67464eba92092ec9b18f981fe47b252553560bcd3648cdc39f393e3c8d0e8feb23e3daa3c48dca3f185"
}