Extrinsic 31042-2

{
  "heartbeat": {
    "blockNumber": 31041,
    "sessionIndex": 517,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0xa68d6a0b4d28efe3365867fdadd6db8ed635443b54e29b2f52501a7a26c1cb093f812ab5b4205a098c2462bdac21318c26adac5d11a47ad75eb9b7aa9f729d85"
}