Extrinsic 26749-1

{
  "heartbeat": {
    "blockNumber": 26747,
    "sessionIndex": 445,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x84c882cae75f7b0d215d1ff798922ab14d660074c77c0236e5439e78817d9f5ca0c2edb25d0c8fbb57e4868bcff0ac075d51cbf94124860625ca960f56793381"
}