Extrinsic 123280-1

{
  "heartbeat": {
    "blockNumber": 123279,
    "sessionIndex": 2054,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0x08a8b6d340bd2618f55fe2adb25256e325806f49ed26ae629a0b49d5f1cef74e173630532c2bba99a19b2d687909d39f9af2ac4d7f8bd5d67fcfc3f6cb402288"
}