Extrinsic 45469-1

{
  "heartbeat": {
    "blockNumber": 45467,
    "sessionIndex": 757,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x48b41d6de3f0d10afe42c31bafafed4226dda400081412a060ea355ddbb0425231a38433505223445e906beb6787e0668a61754d68c8cf83b7952d1dca44be83"
}