Extrinsic 27969-1

{
  "heartbeat": {
    "blockNumber": 27967,
    "sessionIndex": 466,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x4057a5c70072c25ca04536744c36e30ff3c196b621dc0dce46f1871cb8410d360eb84aeaae64154f0cc4227eba05abe72116f5e2b81f8e217236167b75dffd86"
}