Create Participant

curl --request POST \
  --url https://api.userintuition.ai/api/public/v1/participants/ \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "study_id": "<string>",
  "email": "jsmith@example.com",
  "silent": false
}
'

{
  "id": "<string>",
  "study_id": "<string>",
  "email": "<string>",
  "panel_status": "<string>",
  "reward_sent": true,
  "reward_sent_at": "2023-11-07T05:31:56Z",
  "sent_at": "2023-11-07T05:31:56Z",
  "created_at": "2023-11-07T05:31:56Z"
}