Extrinsic 44355-1

{
  "heartbeat": {
    "blockNumber": 44353,
    "sessionIndex": 739,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0xd2e7195a9e519c697fb7ea317b83cd6300b224c458d556e2752fcd8a5c8b906c253e23dfda6d1f765fcb1844e09a52f0baf45b35329fcc2351e9bedd3f7d0f81"
}