#### URL Expired

The URL for this request expired after 30 days.

### Optional metadata when starting an operation.

- **OperationID**  
  string  
  Unique operation identifier.

- **InitiatorID**  
  string  
  Initiator identifier.

- **ChainName**  
  string

- **CAIP19**  
  string

- **Asset**  
  string  
  required

- **TestNetwork**  
  boolean  
  truefalse

- **DataToSign**  
  string  
  required

- **TypeOfSigning**  
  string  
  required

- **Source**  
  object  
  required  
  Identifies an on-chain address in transaction intents and related APIs. Either set both `MasterKeyName` and `AccountName` (with optional `AddressIndex` where the API allows it; index `0` is the main address when deriving), or set `Address` to a literal address string. Setting only one of `MasterKeyName` or `AccountName` is invalid. For [`POST /solana/accountInfo`](https://vault.docs.blockdaemon.com/reference/cwpstartgenericsigning#/paths/~1solana~1accountInfo/post), when not sending `Address`, `AddressIndex` is required alongside master key and account.

### Source object

```
200    Operation started

400    Invalid input, validation error, or malformed request

500    Internal server error. May include an `errorCode` (M-prefixed) and `data` from the MPA error code system. See `cwpapi/errors.go` for codes.
```

### Updated 3 months ago

---

### Base URL

https://api.your-wallet.blockdaemon-wallet.com/api/cwp/operations/start/genericSigning

### Sample Request

```
curl --request POST \
     --url https://api.your-wallet.blockdaemon-wallet.com/api/cwp/operations/start/genericSigning \
     --header 'accept: application/json' \
     --header 'content-type: application/json'
```

### Click `Try It!` to start a request and see the response here! Or choose an example:

application/json

```
200
400
500
```

### Updated 3 months ago