Extrinsic 31728-1

{
  "heartbeat": {
    "blockNumber": 31727,
    "sessionIndex": 528,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x0818bff0306c99bcf8a3647bd32fa8dbeab7a265b229d31236d28f712748cc50af284ef157fc1c3be7c1206989d5c4ea276e5dc3b8021c3c095224abcae3b985"
}