POST Custom Hostname for a zone API Endpoint

Hi, I am trying to use the Cloudflare API on “Custom Hostname for a zone” regarding the POST Create Custom Hostname API Endpoint. I have been getting a 1400 error code and I am unsure as to why my JSON data is formatted wrongly. Below is part of the CURL command I used for the post request and I do not want to add a custom certificate or custom key, hence those fields are not in…: --data ‘{“hostname”:“”,“ssl”:{“method”:“http”,“type”:“dv”,“settings”:{“http2”:“on”,“min_tls_version”:“1.0”,“tls_1_3”:“on”,“ciphers”:[“ECDHE-RSA-AES128-GCM-SHA256”,“AES128-SHA”],“early_hints”:“on”},“bundle_method”:“ubiquitous”,“wildcard”:false}}’

The Hostname that is used is allowed through the Cloudflare webapp…