Extrinsic 7394-1

{
  "heartbeat": {
    "blockNumber": 7393,
    "sessionIndex": 123,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0xba256c38ce47437fd8da370ee48e063def5e39f65e48efc4b6e5c9106bdbb45f1cba1d397660ef5c606f78dcb45872a1e62e4fbe20618dffc43ea56e475bf483"
}