Extrinsic 23681-1

{
  "heartbeat": {
    "blockNumber": 23679,
    "sessionIndex": 394,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x4c3afdc81fb83e770a6a255fa6a910e291138d7576ac19da2720f1eb889f1b47a0d8700bdb0679936f1cd30b3cd2725a1c4222309e179d02093cb0d7891ddc86"
}