Extrinsic 66517-1

{
  "heartbeat": {
    "blockNumber": 66516,
    "sessionIndex": 1108,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xd4a245457358f0195e55a4ff2a852cd2ecf8cc1c785fc8e77623a418f0a4b953956fcff555a44209a77d366d7fcaa68810db3f73467bf9f491d16ae13903ce80"
}