curl --request POST \
  --url https://api.example.com/api/v1/invitation-code/redeem \
  --header 'Content-Type: application/json' \
  --data '
{
  "code": "<string>"
}
'

{
  "access_token": "<string>",
  "user_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "token_type": "bearer",
  "refresh_token": "<string>",
  "expires_in": 123
}