Extrinsic 41552-1

{
  "heartbeat": {
    "blockNumber": 41550,
    "sessionIndex": 692,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x366acb40fdcaf1a9ce0307d3a8a382ee1bd4dfb80b47e0445b4091cbf04b831b6a83344c183550a8b67efc41c70fc61a8734fd4cc7e08a50a6ea224401311585"
}