curl --request POST \
  --url https://payments.oaknetwork.org/api/v1/merchant \
  --header 'Content-Type: application/json' \
  --header 'x-access-token: <api-key>' \
  --data '
{
  "legal_name": "Acme Corp",
  "address": "123 Business St, Suite 100",
  "website": "https://acme.example.com",
  "tax_number": "12345678901"
}
'

{
  "msg": "<string>",
  "data": {
    "id": 123,
    "legalName": "<string>",
    "address": "<string>",
    "website": "<string>",
    "taxNumber": "<string>",
    "appId": "<string>",
    "isApproved": true,
    "createdAt": "2023-11-07T05:31:56Z",
    "updatedAt": "2023-11-07T05:31:56Z"
  }
}