Extrinsic 14928-1

{
  "heartbeat": {
    "blockNumber": 14927,
    "sessionIndex": 248,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0xa685786bac88939298a05b550d02d9da2694f594bccfcf81a92d4a8374dad03b62907c49d0d441273c300a546255b7295f71aeb1046002e755dfde57e73b3e8a"
}