Extrinsic 27398-1

{
  "heartbeat": {
    "blockNumber": 27397,
    "sessionIndex": 456,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0xc60938c9c906534d638d19d3580c8fdd485da8cd7302043cf8e8917fafb61d10568363d2076c0b7e83641aff40bdd514fc259ec02340a1ed3d43e798ee58608e"
}