Extrinsic 13060-1

{
  "heartbeat": {
    "blockNumber": 13058,
    "sessionIndex": 217,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0x0a7f5179ac3420db47ee2c29e6d561b72c669851248e2d59e75a77729c1e9527b9add193c8d9d5b891aefc5ea7508f9167504e8d8e9795f0a824706ed164ac87"
}