curl --request GET \
  --url https://{workspaceId}.clinia.cloud/mdm/v1/collections/{collectionKey}

{
  "key": "<string>",
  "profile": {
    "sourceProfiles": [
      {
        "source": "<string>",
        "type": "<string>"
      }
    ]
  },
  "resolutionRule": {
    "resolvers": {},
    "matchers": {},
    "properties": {},
    "mappings": [
      {
        "source": "<string>",
        "type": "<string>",
        "paths": {}
      }
    ]
  }
}