Extrinsic 68388-1

{
  "heartbeat": {
    "blockNumber": 68387,
    "sessionIndex": 1139,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x3e3a6eb52c6cbabf64d5ba97a13fa3eacaaa782075fb920b95c11925a0539c08670f560d3a22c6e47bd1f202b2c80c2e1e21f8061357c674528ebcd129c58a8f"
}