Extrinsic 26442-1

{
  "heartbeat": {
    "blockNumber": 26441,
    "sessionIndex": 440,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x860ec36063b7372fcb9367f45be1a142a113b1f4d6316f23ac4b70d23367c7590ed9e66d1f345eda9603af87f305aaea313a2bb810a100c3007b2cf92f90c084"
}