Extrinsic 46450-1

{
  "heartbeat": {
    "blockNumber": 46448,
    "sessionIndex": 774,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0x74f31553045e2a67756773f1cbe665a076756a91535b64e364754ef209fea65706959690cc75ec888f105989fff4ffe68a131a72e2b94c79e279e3cbb042a488"
}