Extrinsic 13354-1

{
  "heartbeat": {
    "blockNumber": 13353,
    "sessionIndex": 222,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xc6b25463ce5c0ebbb9fda45b83898a4b5e6a603c23eec2f656a8e48f1c1a8131d9ac4e5f76411942eaec5a38e2925915c6210e62fe5860af93d42eb0cb68e089"
}