Creates a pre-signed upload URL for a release ZIP file (ERN metadata + audio). Upload the file via HTTP PUT to the returned upload_url, then call POST /distribution/deliveries with the file_id to create the delivery.
Documentation Index
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Access token obtained via the Client Credentials OAuth 2.0 flow at https://connect.musixmatch.com/oauth/token
The Musixmatch user ID of the artist, obtained via token introspection of the user's access token
Upload slot created. Use upload_url to upload the ZIP via HTTP PUT.