Is there a proper cryptographic implementation for Ed25519 digital signatures?

General Usage
1

I have generate the Ed25519 Key Pair for API request on Binance.

And here is a Python sample code to show how to sign the payload with an Ed25519 key.

#!/usr/bin/env python3

import base64
import requests
import time
from cryptography.hazmat.primitives.serialization import load_pem_private_key

# Set up authentication
API_KEY='put your own API Key here'
PRIVATE_KEY_PATH='test-prv-key.pem'

# Load the private key.
# In this example the key is expected to be stored without encryption,
# but we recommend using a strong password for improved security.
with open(PRIVATE_KEY_PATH, 'rb') as f:
    private_key = load_pem_private_key(data=f.read(),
                                       password=None)

# Set up the request parameters
params = {
    'symbol':       'BTCUSDT',
    'side':         'SELL',
    'type':         'LIMIT',
    'timeInForce':  'GTC',
    'quantity':     '1.0000000',
    'price':        '0.20',
}

# Timestamp the request
timestamp = int(time.time() * 1000) # UNIX timestamp in milliseconds
params['timestamp'] = timestamp

# Sign the request
payload = '&'.join([f'{param}={value}' for param, value in params.items()])
signature = base64.b64encode(private_key.sign(payload.encode('ASCII')))
params['signature'] = signature

# Send the request
headers = {
    'X-MBX-APIKEY': API_KEY,
}
response = requests.post(
    'https://api.binance.com/api/v3/order',
    headers=headers,
    data=params,
)
print(response.json())

But I don’t know how to play with it in julia, should I use a special library for Ed25519 key? Is there a such library?