curl --request POST \
  --url https://api.{tenant}.getomneo.com/api/v3/appointment-waitlists \
  --header 'Content-Type: application/json' \
  --data '
{
  "appointment_definition_id": 123,
  "profile_id": "<string>",
  "location_id": 123,
  "appointment_id": 123,
  "desired_start_at": "<string>",
  "notes": "<string>",
  "meta": [
    "<string>"
  ]
}
'

{
  "data": {
    "id": 123,
    "appointment_definition_id": 123,
    "profile_id": "<string>",
    "profile": {
      "id": "<string>",
      "first_name": "<string>",
      "last_name": "<string>",
      "email": "<string>"
    },
    "location_id": 123,
    "location": {
      "id": "<string>",
      "name": "<string>",
      "handle": "<string>",
      "timezone": "<string>"
    },
    "appointment_id": 123,
    "status": "<string>",
    "desired_start_at": "<string>",
    "notes": "<string>",
    "meta": [
      "<unknown>"
    ],
    "created_at": "<string>",
    "updated_at": "<string>"
  }
}