Field Name	Type	Description
nameOnAccount	String	Name on the checking/savings account.
routingNumber	String	Routing number of the account.
accountNumber	String	Account Number of the account.
accountType	Integer	Default is "checking_business". There are 4 possible options here. The options are: "checking_business", "checking_personal", "savings_business", "savings_personal".

"eCheck": {
        "nameOnAccount": "Jane P Doe",
        "routingNumber": "123456789",
        "accountNumber": "1000100010",
        "accountType": "checking_business"
      }