curl --request POST \
  --url https://api.talentunveiled.com/api/v1/jobs/{job_posting_id}/applications \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "first_name": "John",
  "last_name": "Doe",
  "phone_number": "+16505551234",
  "email": "john@example.com",
  "custom_fields": {
    "Notice period": "30 days",
    "Why this role?": "Looking for growth opportunities",
    "Years of experience": 7
  }
}
'

{
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "created_at": "2023-11-07T05:31:56Z",
  "candidate": {
    "first_name": "<string>",
    "last_name": "<string>",
    "phone_number": "<string>",
    "email": "jsmith@example.com"
  },
  "custom_fields": "<unknown>"
}