Extrinsic 58420-1

{
  "heartbeat": {
    "blockNumber": 58419,
    "sessionIndex": 973,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x30d377665f7aac7199ea3aadd5b2823dbc0f5cc99d16ec7a4811fd37559f4b6cf0936f8cb475a7d77ab92dae09006f51436a0ab9dcbc7c34ce26f837de167d8b"
}