Extrinsic 48752-1

{
  "heartbeat": {
    "blockNumber": 48751,
    "sessionIndex": 812,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x72996b651fff0405571caa2e11729bb641ccf240614e610114e1d2c2ab14c94db9435488543ee9d00fb55c726a62b94c13d89733ddd2eb4e5da16274b18c908d"
}