Extrinsic 70874-1

{
  "heartbeat": {
    "blockNumber": 70873,
    "sessionIndex": 1181,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x7ca67daf8489583dd218a08415249398ce1b494a7d90405631336148e95b384e0df5508cb58f9069ba1e734f0c4fa062002cd81389116a79bdb28938d19a728d"
}