Extrinsic 63745-1

{
  "heartbeat": {
    "blockNumber": 63744,
    "sessionIndex": 1062,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x3e6cbdc0aaba49e9d323ec02c1337442d41facbbb63b419b537cdf355e8f1b6b17a56142887cf7927a7176465b4b88e885a726153cad0eb137ec55a68ab62588"
}