Extrinsic 25904-1

{
  "heartbeat": {
    "blockNumber": 25903,
    "sessionIndex": 431,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0x3ea6fe403d31312ec56641f1ffb6e2f1091106437213119d9f7cba611dc9432945abb9ed2f6c185d536bc02a43c37338ec9bac8941ee40d5df95bb446429aa81"
}