Extrinsic 37728-1

{
  "heartbeat": {
    "blockNumber": 37727,
    "sessionIndex": 628,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0x3cf6d918ec6a7ecfae71f7835fbe2685e10243db1f528aced8c87c1dc68051138b2f649e8194a5b9d7d9d0ec66b22c6e6a2c949634bcc55791413ce4b9690b82"
}