curl -L -X GET 'https://apis.roblox.com/cloud/v2/groups/{group_id}/memberships?maxPageSize=10&pageToken={string}&filter={string}' \
  -H 'x-api-key: {your-api-key}'

{
  "groupMemberships": [
    {
      "path": "groups/123/memberships/123",
      "createTime": "2023-07-05T12:34:56Z",
      "updateTime": "2023-07-05T12:34:56Z",
      "user": "users/21557",
      "role": "groups/7/roles/99513316"
    }
  ],
  "nextPageToken": "string"
}

curl -L -X PATCH 'https://apis.roblox.com/cloud/v2/groups/{group_id}/memberships/{membership_id}' \
  -H 'x-api-key: {your-api-key}' \
  -H 'Content-Type: application/json' \
  --data '{
  "role": "groups/7/roles/99513316"
}'

{
  "path": "groups/123/memberships/123",
  "createTime": "2023-07-05T12:34:56Z",
  "updateTime": "2023-07-05T12:34:56Z",
  "user": "users/21557",
  "role": "groups/7/roles/99513316"
}