Extrinsic 14769-1

{
  "heartbeat": {
    "blockNumber": 14768,
    "sessionIndex": 246,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0xfa7b4cbd26050b63d2d1cd34f8d7fb522e2df213131dca1a035e7a13eaa1500cc987a96215ad97c35b993e41b2020979d74048dc9bae8171ea73d6e91d4fd581"
}