Extrinsic 187995-1

{
  "heartbeat": {
    "blockNumber": 187993,
    "sessionIndex": 3133,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x76327272aaee7bbf0f9dff58c7502670fd1f76a9474d75832817c01af5ceb451c42612fc4a0487388f8230177f592c5b6e6c1c3ebe6298b96c55bc180b832684"
}