Extrinsic 69389-1

{
  "heartbeat": {
    "blockNumber": 69388,
    "sessionIndex": 1156,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x7a707cf4aee69d328a161b1b648b3c9fea06e1f5554b4060a3f63415e4b52f78b306a45b9e3ce012d98f30d8a7879572a85d9d2f9655ebe829d890ff7ae66e80"
}