Extrinsic 27108-1

{
  "heartbeat": {
    "blockNumber": 27107,
    "sessionIndex": 451,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0xcc1a5e9d92c4480fae31e1a0cc5bf703307b336c7679c4dd5f7a7f6e566f5046f32e5aa4c0dc32c29c75510a05d1eb87dc715fd336d84e07ab08b9158a711d86"
}