Extrinsic 33259-1

{
  "heartbeat": {
    "blockNumber": 33258,
    "sessionIndex": 554,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x002c372c680e396326a6ce67a65e26d4a44096d0f31067dc51c59a8cf9d58c66b606e7c25d9bc94d270ac5ba945babf3bb976ade6e447ceaba2bb60646d3248c"
}