Extrinsic 137784-1

{
  "heartbeat": {
    "blockNumber": 137782,
    "sessionIndex": 2296,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x78f8b5f0042573abbfa276aec042ef7e87a84392f3858825f79423f7a511b8604790f8d8148741a15b4ff91ae385eb3495be20d18def75e7c8c09292a791f785"
}