| Name | Type | Description | Notes |
|---|---|---|---|
| accessToken | String | The consumer’s access token key | [optional] |
| nonce | String | Random string, uniquely generated by the proxy | [optional] |
| signature | String | Checksum generated by hmac-sha1 of accessToken + device.serialNumber + endpointId + nonce + invoiceId + amountCentis + currency | [optional] |
| token | String | The session token of transfer transaction | [optional] |