{ "custom_fields": [ { "id": 1, "name": "Planned volume", "customized_type": "issue", "field_format": "string", "regexp": "", "default_value": "", "visible": true, "trackers": { "tracker": { "id": 3, "name": "Support" } }, "roles": { } }, { "id": 2, "name": "Actual Volume", "customized_type": "issue", "field_format": "int", "regexp": "", "default_value": "", "visible": true, "trackers": { "tracker": { "id": 3, "name": "Support" } }, "roles": { } } ] }