Extrinsic 23326-1

{
  "heartbeat": {
    "blockNumber": 23324,
    "sessionIndex": 388,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x0c78d93b866eaf4bcd96aa46dafc9e5b9c65d759e6c43865edc6f2b8af329c68b817c359d74d0255fa957833b8db2b977f1ca98dbc80579892a995e324691c8e"
}