Extrinsic 3048-1

{
  "heartbeat": {
    "blockNumber": 3047,
    "sessionIndex": 50,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xb4c45e2e4cffddc7115b34d2b644c85b5bc10625c70afc45b6920fd9a2f79840ba85339a408fbea6f8a58e5f3d612c1aa5dc8867d50948dd3101c5b972a31782"
}