Function signCapacityCheckRequest

signCapacityCheckRequest(
    signer: CapacitySigner,
    fields: CapacityCheckFields,
    nonce: `0x${string}`,
): Promise<SignedCapacityCheckRequest>
Parameters
- signer: CapacitySigner
- fields: CapacityCheckFields
- nonce: `0x${string}`
Returns Promise<SignedCapacityCheckRequest>