Encrypt string using NaCl in Python

encrypt.py

import base64

payload = 'VKlNGb4mCR/5BBunW4d7jpwp/KI1pRcsW/DeuMzXThh+nz8HRMI54bmWLKjC3haJuBGZQmX/SfNIACU='
payloadEncoded = payload.encode("UTF-8")
payloadArray = base64.b64decode(payload)

nonceArray = payloadArray[0:24]
msgArray = payloadArray[24:len(payloadArray)]

from nacl.secret import SecretBox
secretKey = '32323232323232323232323232323232'
box = SecretBox(bytes(secretKey, 'utf8'))

decrypted = box.decrypt(msgArray, nonceArray).decode('utf-8')
print(decrypted)