Extrinsic 43580-1

{
  "heartbeat": {
    "blockNumber": 43578,
    "sessionIndex": 726,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x3c7fc5d5ad11921cfbdb1cf756f61e4bbcdec0a1f2486623c7f66b8f0ac066292d533d73fbdfd48688440f82fe91037284a0922581880e10bba101d3696f3882"
}