Extrinsic 13772-1

{
  "heartbeat": {
    "blockNumber": 13771,
    "sessionIndex": 229,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0x46da7a60efd47ac5acd71fda9642b989ace0bb831acda3215a0e8c3882c92d27ef065c58cc0c072bed050980884211bbfa108448dddaa63c177a081317aeaa80"
}