Extrinsic 122448-1

{
  "heartbeat": {
    "blockNumber": 122447,
    "sessionIndex": 2040,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xd2da111f864540e9c0acc5eb42cc31976f312635dbe83c4894eb5b66274855304fee4305b1562f75e1928f7ecb17d99d63578b8722faa1c93a6da1463dad7883"
}