Extrinsic 44374-2

{
  "heartbeat": {
    "blockNumber": 44372,
    "sessionIndex": 739,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x62ba902117019348daf7385d07fc5aaaba00a2f6424b9eed17af2d33b481f7260d3b4bcef2a188269e1cf66300977780547241ade408f0ce7175934c77c22483"
}