Extrinsic 41268-1

{
  "heartbeat": {
    "blockNumber": 41267,
    "sessionIndex": 687,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0x3ca866a23d34b55bb769e8f2146ab5d6b3ffa7837c7cb3c309539a635676d021bd4612466fdc019955616a014db2469c125e96ea52bb7b6bc38cef4d0fcc688c"
}