Extrinsic 27267-1

{
  "heartbeat": {
    "blockNumber": 27265,
    "sessionIndex": 454,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x7a0621464b12244a130b427092265ab707d9eb53913b252799647cab47ad0478c4998abaadf170ccef879fe33293800f602a42dbd8179c319d0d18f0675f6e88"
}