Extrinsic 40788-1

{
  "heartbeat": {
    "blockNumber": 40786,
    "sessionIndex": 679,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0x4a623bbadc30bc73a5da4b0983db2efa080bb682af0a144072f19f8c3798563e4f897d09bbc47fd484e6da1c8cbfc39c9016eb106b7bf228a8f82bd171a0e58c"
}