Extrinsic 138492-1

{
  "heartbeat": {
    "blockNumber": 138491,
    "sessionIndex": 2308,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xae0444b1bd283b19ca87061403f174f958222f358a45cba27cfcc236c5855d548ab6d99724d5a5c64134db6e64bdfaf5f2e865ac0796b55ce81ddee1a267de80"
}