curl --request GET \
  --url https://api.dintero.com/v1/accounts/{aid}/customers/settings \
  --header 'Authorization: Bearer <token>'

{
  "users": {
    "customer_id_format": "uuid",
    "head": {
      "enabled": false
    },
    "phone_number_validation": {
      "allow_duplicates": false
    },
    "mfa": {
      "enabled": false,
      "login": {
        "challenge_type": "oob"
      },
      "login_recovery": {
        "challenge_type": "oob"
      }
    },
    "verifications": {
      "phone_number": "sms"
    }
  },
  "auto_tokens": {
    "phone_number": [
      {}
    ],
    "email": [
      {}
    ]
  },
  "tokens": {
    "event_expiry": [
      {
        "status": "OPT_OUT",
        "time_to_live": 15780000
      }
    ]
  },
  "attributes": [
    {
      "name": "<string>",
      "multiple_values": false,
      "private": false
    }
  ]
}