curl --request POST \
  --url https://staging.afx-server.com/api/v1/payment-method \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "channel": "BANK_ACCOUNT",
  "customerId": "<string>",
  "accountName": "<string>",
  "accountNumber": "<string>",
  "countryCode": "<string>",
  "institution": {
    "institutionId": "<string>",
    "institutionName": "<string>",
    "institutionCode": "<string>",
    "institutionAddress": "<string>"
  },
  "recipient": {
    "recipientEmail": "jsmith@example.com",
    "recipientPhone": "<string>",
    "recipientAddress": "<string>",
    "recipientName": "<string>"
  },
  "transaction": {
    "transactionInvoice": "<string>",
    "transactionNarration": "<string>"
  }
}
'

{
  "data": {
    "paymentMethodId": "<string>",
    "customerId": "<string>",
    "institution": {
      "institutionId": "<string>",
      "institutionName": "<string>",
      "institutionCode": "<string>",
      "institutionAddress": "<string>"
    },
    "transaction": {
      "transactionInvoice": "<string>",
      "transactionNarration": "<string>"
    },
    "channel": "BANK_ACCOUNT",
    "countryCode": "<string>",
    "accountName": "<string>",
    "accountNumber": "<string>",
    "meta": {}
  }
}