Extrinsic 48402-1

{
  "heartbeat": {
    "blockNumber": 48400,
    "sessionIndex": 806,
    "validatorsLen": 4,
    "authorityIndex": 3
  },
  "signature": "0x3a3b666f5598770ac21e5445e5767137faf6c1f12a4197a3210928a5258fbd3f359a92b05ac53e8160ddcdde0780d96a4cb69ca55c206b960164ead36856e68c"
}