Extrinsic 27669-1

{
  "heartbeat": {
    "blockNumber": 27667,
    "sessionIndex": 461,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0xa20ed77048c9df8c072fe70db2dd0dc833ada32015080e733435ceea6c504d17978c6b40c243a9ec5f61543763cb037454e4da4cf1b225d2be8ab113c74d8e84"
}