Extrinsic 2683-1

{
  "heartbeat": {
    "blockNumber": 2682,
    "sessionIndex": 44,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0x28b9f7218b5fdd364aa806cbc8a4627271946202ef73d27a92d30caa83a75c3f73f5bd1c304ff035a91241df678dc8a0306d5be859547e7b275ed16653c59a84"
}