Extrinsic 51394-1

{
  "heartbeat": {
    "blockNumber": 51393,
    "sessionIndex": 856,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x46e8fe943e23c512014052911d2332c2326fe4afa5a04cce8a995e73925459459c992d464b39c5a993610eb6c7621615855af38e941cb03ce22ebd66c0ba228a"
}