Extrinsic 43111-1

{
  "heartbeat": {
    "blockNumber": 43110,
    "sessionIndex": 718,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0xf86ba9db86075570498760e6ebcec6c751fbb3fa41450fdbd8e48faf848d6a795626cc798d2dcb1e1a69441774402627f4541dce9885e156900229a345ee9189"
}