Extrinsic 50621-1

{
  "heartbeat": {
    "blockNumber": 50620,
    "sessionIndex": 843,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xf2a2da1f9c34f38e24c97c0c35143193b33524acb24e858c5b52a8b54c1ecf5991cc6d5579ed6beb0e76e8fc7c720772a7b5de46d4dbd8e6d83a594ced1f9b8f"
}