Extrinsic 28246-1

{
  "heartbeat": {
    "blockNumber": 28245,
    "sessionIndex": 470,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x5e0b8839af8b72d9427df5c475ae80b1de3dac6a843b09362748432425fa7c5d4b01248d1753644409a31a52a2d6f078441a49e38a1d91eda4056dcc13eb348e"
}