Extrinsic 154055-1

{
  "heartbeat": {
    "blockNumber": 154054,
    "sessionIndex": 2567,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xc69782c6f4833b28f7adf1d71d01a349de7e8e320d568e196b12aff60111a73f1f7d6ba43d4f8c33743c0e078b8d9b3e151c2933a94681f08c3d384bac7e988d"
}