Extrinsic 43484-1

{
  "heartbeat": {
    "blockNumber": 43483,
    "sessionIndex": 724,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0xe2323c6b1f82233acf9c75582f2587449b95753b4c963ce6ced49b78286537623fe41cd8c6aba081746526c67d456451e51483573855689aca52ea6585d6398c"
}