Extrinsic 401730-1

{
  "heartbeat": {
    "blockNumber": 401729,
    "sessionIndex": 6695,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x684a839cef587d30ae6a170c9bef0dca9f414f3cc9e6708a1f3d325b6da62e08425c705c145316b073b2a4b0e539198f83d91060bdde9b96fff04ff4efdd0780"
}