Extrinsic 17683-1

{
  "heartbeat": {
    "blockNumber": 17682,
    "sessionIndex": 294,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x88fbe2569e207c31b920eda870cd1daa0925de2694aa9be3ee544fe684605775bd01fd3e2dee3a1a35857bf554492d86788bcb8b1d3ab977d4f3b5cdde369d85"
}