Extrinsic 43665-1

{
  "heartbeat": {
    "blockNumber": 43664,
    "sessionIndex": 727,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0x24b8cd1b785951389d678ddd323ef1d0a7761b545556c90d9efb055aa455ce3e920b200b10ae00bdefc03dd01d3078254ac4ec631b55f1b442c07e32a9b8cc84"
}