Extrinsic 23291-1

{
  "heartbeat": {
    "blockNumber": 23290,
    "sessionIndex": 388,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0x92e3222cc41ccb496d4c6c457ba153d39674c6da2fe3d3a4c5f5d7f21854e64913ed53d4d5e2ad8a9d4ef963c17287fb8b4ecd81a4cd34c9fa78f49a73853e87"
}