# SignatureData

A model the API reference uses in a request or a response. The operation pages link every field typed as this model here.

Represents signature data for a transaction.

## Fields
- `signatureType` ([SignatureTypes](https://devportal.demo.winkpg.io/docs/api/models/SignatureTypes.md)): The type of signature.
  Values:
  - `Signature1`: Represents the first signature type.
  - `Signature2`: Represents the second signature type.
  - `Signature3`: Represents the third signature type.
  - `Signature4`: Represents the fourth signature type.
  - `HypercomLegacy`: Represents the legacy Hypercom signature type.
  - `HypercomEnhanced`: Represents the enhanced Hypercom signature type.
  - `Receipt1`: Represents the first receipt signature type.
- `data` (string): The signature data. (nullable)

## See also

- [All documentation](https://devportal.demo.winkpg.io/llms.txt): the machine-readable index of every public page on this site.