Extrinsic 131261-1

{
  "heartbeat": {
    "blockNumber": 131259,
    "sessionIndex": 2187,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xca5012c6edab4a46d04e689ece4dd04a9f1f8b0004153ef1db78ff559952d638175320104f1cf4c9bb6873c8eceb05acf8d107c71704fdbee5baea094d943e81"
}