Extrinsic 13059-1

{
  "heartbeat": {
    "blockNumber": 13057,
    "sessionIndex": 217,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0x5a2ace16a846e416af7abc929932cff1bcf76cab961c176807b06bc7cb4478642a7fe4acc2c752eb83b900a7b4eb3abf4d1a890106e79b9664603644a804c38f"
}