Optional
emoji_The id of the custom emoji for the soundboard sound
Optional
emoji_The unicode character of a standard emoji for the soundboard sound
Optional
nameThe name of the soundboard sound (2-32 characters)
Optional
volumeThe volume of the soundboard sound, from 0 to 1
See
https://discord.com/developers/docs/resources/soundboard#modify-guild-soundboard-sound-json-params