Extrinsic 27323-1

{
  "heartbeat": {
    "blockNumber": 27322,
    "sessionIndex": 455,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0xa864643403ed43adb3c61dff24f49b8ff275181ca66c67ff7a8066db902afb5e3196a38571bd9a4c8bf089b177f7abfe0bf2cdfaeb7f6779489e2b2b26f7bb83"
}