Extrinsic 84375-1

{
  "heartbeat": {
    "blockNumber": 84374,
    "sessionIndex": 1406,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xdc23843f2874dfc5c7de88017429a1b2a47ab921c43806c2d85c89d33d763e3245f94209b7d5ba4d27206c140bd54d19545bee750ba6fa2bb594f294cc141c81"
}