curl --location --request PUT 'https://api.challonge.com/v2/tournaments//participants/.json' \
--header 'Accept;' \
--header 'Authorization-Type;' \
--header 'Authorization: <api-key>'{
"id": 76,
"type": "participant",
"attributes": {
"id": null,
"group_id": null,
"tournament_id": null,
"icon": null,
"seed": null,
"misc": null,
"name": null,
"username": null,
"final_rank": null,
"states": null,
"timestamps": null
}
}