Extrinsic 55668-1

{
  "heartbeat": {
    "blockNumber": 55667,
    "sessionIndex": 927,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x506eac7d98e93f033ee21fb0e604acef4be8bec04f7ecb187797665a2757fb3e6529f50e37e06980f878fa171e27ea81fdb8284e880ce82207c32a8aba01ec86"
}