Extrinsic 44414-1

{
  "heartbeat": {
    "blockNumber": 44412,
    "sessionIndex": 740,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x2879a02a23455336b8fddb5d142dc34b320fa34e57576c0286b6aaaa5550f67c258702337b07fca493c9bddd6c6690cd08fabd719e79503de9753d28e1b46f8c"
}