Extrinsic 43891-1

{
  "heartbeat": {
    "blockNumber": 43889,
    "sessionIndex": 731,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0x96e79969df32a29f64242e7943880a950a84b92932e2617c491cc4b3787e19675191bc2ed9479c122c477a1578361cd6a5d72e2572535982caa23498cb66c183"
}