Extrinsic 37356-1

{
  "heartbeat": {
    "blockNumber": 37355,
    "sessionIndex": 622,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0xea6c360ee2af9e2ae7c16596fda8e01668788be4c4866291d26b744b7f7ea54f4edff4c7c66a2543e4d50396bdd657da33d2cc60afc11c0c055581cb87e1ff8d"
}