Extrinsic 66674-1

{
  "heartbeat": {
    "blockNumber": 66673,
    "sessionIndex": 1111,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xe23a8f508764d7da715a42e2684a164959284f31f30c67378cc1828d906388287e34881ea179b0028edc346a833387cb53140077b8cd76fe831794361445c885"
}