Extrinsic 43609-1

{
  "heartbeat": {
    "blockNumber": 43607,
    "sessionIndex": 726,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x16bbbe43f95e099f7b986db205cecf1e65648eb16695d1ef09285f28901e38320461090fcaef8434365ee976a7eb8a49e8d783ae80b24f75de7262dad69e4d8b"
}