curl --request POST \
  --url https://api.boosterberg.com-beta.com/v1/user/signup-fb \
  --header 'Content-Type: application/json' \
  --data '
{
  "access-token": "<string>",
  "preset_id": 1,
  "email": "jsmith@example.com"
}
'

{
  "fbid": 123,
  "email": "<string>",
  "first_name": "<string>",
  "last_name": "<string>",
  "phone_number": "<string>",
  "agency_id": 123,
  "agency_name": "<string>",
  "credit_balance": "500.00"
}