Extrinsic 39193-1

{
  "heartbeat": {
    "blockNumber": 39192,
    "sessionIndex": 653,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0x0297bbdda12b93a216295741793713ed6b1fb6539517aa5763dcf7ad560bbb0e670caea36297bab80510bafc345c7b7e38ec2a27dd2fa8b0c119180cdf859a8a"
}