Extrinsic 55996-1

{
  "heartbeat": {
    "blockNumber": 55995,
    "sessionIndex": 933,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0x803b58323ac4f65dc57c5d406dc9b9a17da392c133e81d35377fcabce8c7e13057379d79bdf1fe6862ee8b122e6f8e4adcc5eeafad80c5780ab37c339ce63e81"
}