curl --request POST \
  --url https://api.managem.co.uk/conversations/{id}/lock \
  --header 'Authorization: Bearer <token>'

{
  "id": "<string>",
  "source": {
    "id": "<string>"
  },
  "userA": {
    "id": "<string>",
    "username": "<string>",
    "reviews": 123,
    "rating": 123,
    "score": 123,
    "sales": 123,
    "purchases": 123,
    "joined": "2023-11-07T05:31:56Z",
    "avatar": "<string>",
    "cover": "<string>",
    "profile": "<string>"
  },
  "userB": {
    "id": "<string>",
    "username": "<string>",
    "reviews": 123,
    "rating": 123,
    "score": 123,
    "sales": 123,
    "purchases": 123,
    "joined": "2023-11-07T05:31:56Z",
    "avatar": "<string>",
    "cover": "<string>",
    "profile": "<string>"
  },
  "locked": true,
  "createdAt": "<string>",
  "updatedAt": "<string>",
  "lastMessage": {
    "id": "<string>",
    "conversationId": "<string>",
    "sender": {
      "id": "<string>",
      "username": "<string>",
      "reviews": 123,
      "rating": 123,
      "score": 123,
      "sales": 123,
      "purchases": 123,
      "joined": "2023-11-07T05:31:56Z",
      "avatar": "<string>",
      "cover": "<string>",
      "profile": "<string>"
    },
    "body": "<string>",
    "createdAt": "<string>",
    "viewedAt": "<string>",
    "attachments": [
      {
        "id": "<string>",
        "imageId": "<string>",
        "url": "<string>"
      }
    ]
  }
}