Extrinsic 88352-1

{
  "heartbeat": {
    "blockNumber": 88351,
    "sessionIndex": 1472,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0x7cea84e6056baa26d5f304f44c4fb9879c89d694fa5f9f9bcc848f4a8ddcd24cf91a8269678638615e74faa59df0b10af7c4dc8b8a3bc162cef76d2ce5652a80"
}