Extrinsic 48813-1

{
  "heartbeat": {
    "blockNumber": 48812,
    "sessionIndex": 813,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x920d7fc2e06721cf596bbc4b393755573c45a8c89eae2fa38c6ab7610ac5ff5af0ab565c30785e12254820706f92df9f5b4da1405f290c9119450a192b70dc8c"
}