curl --request POST \
  --url https://app.melodi.fyi/api/external/issue-message-associations \
  --header 'Content-Type: application/json' \
  --header 'api-key: <api-key>' \
  --data '[
  {
    "issueId": 123,
    "messageId": 123
  }
]'

[
  {
    "id": 123,
    "issueId": 123,
    "messageId": 123,
    "createdAt": "2023-11-07T05:31:56Z",
    "updatedAt": "2023-11-07T05:31:56Z"
  }
]