Extrinsic 23601-1

{
  "heartbeat": {
    "blockNumber": 23599,
    "sessionIndex": 393,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0x82e7ef5dcc37e6d6df02bbf8e1e60faa0ccfef26931d481a02cf87a472c0f425ed7e38517d2e2ac6ab0f80fa8bc1a65457ccf001d8d17f38941f498ff8b29688"
}