Extrinsic 43227-1

{
  "heartbeat": {
    "blockNumber": 43225,
    "sessionIndex": 720,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x7a4d417b7e0fc018815c60e3e3418342ed01905ed455360938f0d1450f9dc66c8d8cdca75aa10ad8715f5dc9a463e2ebff8ac857c1c5e14bf09f5911874ce08b"
}