Extrinsic 27073-1

{
  "heartbeat": {
    "blockNumber": 27072,
    "sessionIndex": 451,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x12e0825f6b8c701612b6b896a8b730210a3319023e52b61e41e7de82b752e11bdda29b03c3e407269abc4e4dfb50900f7ab38ee09f30daf37b3ef65532352488"
}