Extrinsic 13907-1

{
  "heartbeat": {
    "blockNumber": 13905,
    "sessionIndex": 231,
    "validatorsLen": 4,
    "authorityIndex": 1
  },
  "signature": "0x34092c10c72b4c2d87a8aa9f273d8aa4cf435b8713b869895a9b0614e9a2156844422c61ad3e88ef016125b4e0e6fdd1e82af4f69b358ff6b806d7876e542f8d"
}