## signPaymentChannelClaim

`signPaymentChannelClaim(channel: string, amount: string, privateKey: string): string`

Sign a payment channel claim. The signature can be submitted in a subsequent [PaymentChannelClaim](#preparePaymentChannelClaim) transaction.

### Parameters

<%- renderSchema("input/sign-payment-channel-claim.json") %>

### Return Value

This method returns a signature string:

<%- renderSchema("output/sign-payment-channel-claim.json") %>

### Example

```javascript
const channel =
  '3E18C05AD40319B809520F1A136370C4075321B285217323396D6FD9EE1E9037';
const amount = '.00001';
const privateKey =
  'ACCD3309DB14D1A4FC9B1DAE608031F4408C85C73EE05E035B7DC8B25840107A';
return api.signPaymentChannelClaim(channel, amount, privateKey);
```

<%- renderFixture("responses/sign-payment-channel-claim.json") %>