Extrinsic 45873-1

{
  "heartbeat": {
    "blockNumber": 45872,
    "sessionIndex": 764,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x0e2f4b83a5c5f23151a0f3deebcd0150f8a814b87dd29945638b217f15e7744939c19a486c872bf149e83c0b3dc737d34cc80cd55a8d733b213322af7e86838e"
}