{
  "vector": "spa-v1",
  "machine_seed": "1111111111111111111111111111111111111111111111111111111111111111",
  "machine_pubkey": "d04ab232742bb4ab3a1368bd4615e4e6d0224ab71a016baf8520a332c9778737",
  "nonce": "a1b2c3d4e5f60718293a4b5c6d7e8f90",
  "ts_ms": 1750000000000,
  "signed_prefix_len": 25,
  "knock_89": "01a1b2c3d4e5f60718293a4b5c6d7e8f9000dc207497010000135140748ca08ff6a4fef90bd87f5b4fbefe5bf2221bacd47190a2be98949831f07589e7754c566091e17a7b0045c0ec43313c255dae6f9e37b545492cfa590c"
}