Extrinsic 48871-1

{
  "heartbeat": {
    "blockNumber": 48869,
    "sessionIndex": 814,
    "validatorsLen": 4,
    "authorityIndex": 0
  },
  "signature": "0xeea80264e2411045e33e110ceb4cc368b0d2034679c39a4396141c81c4268b4f3c840ec3c2caae3074696cb8aa71954806436b9f66a2053c49f7b2ac02783c86"
}