Extrinsic 73423-1

{
  "heartbeat": {
    "blockNumber": 73422,
    "sessionIndex": 1223,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x161f288eb8e8d87289bd953f91d471a390694cad7e8f7706ba6ce4bd210772402ad679cf68a49f48129c7f2aa915f9c90f2ad1f3616f6de680ca782ba61bef83"
}