Extrinsic 34905-1

{
  "heartbeat": {
    "blockNumber": 34904,
    "sessionIndex": 581,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x941ec0375e8db965151c1b8fd70d554f8b3674c0e42671c20c29837e51195930bb75608788cbd3f85207b77c0b06151cb9c1305fc7fbeefb4f1e631bafd2fd84"
}