Extrinsic 14775-1

{
  "heartbeat": {
    "blockNumber": 14774,
    "sessionIndex": 246,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0xd80adefe8ca8eeb0e79c3528b8ad3c6a91f95d96861203ad45f63cfb78e3074bc215702792722d84be8e2a8dd101b18546d25979d314e3322a4f5f9079ea2189"
}