Extrinsic 5444-1

{
  "heartbeat": {
    "blockNumber": 5442,
    "sessionIndex": 90,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0x50ed41a28b6f7f5197e5bfb73b2fa4f99109adff109cdeae6d2b5874232d2f306aa9ea69dc153450d725b91f84a5443f3ed48e4d1e007992ad3ad8fefe2dcc8c"
}