Function generateSignature

generateSignature(valueToHash, privateKey): {
signature: string;
stringifiedValue: string;
}
Generates a signature using RSA SHA256
Parameters
- valueToHash: string | number | boolean | object
  
  The value that should be signed. Strings are taken as they are - other types are stringified in a consistent way.
- privateKey: string
  
  The RSA private key to use for signing the value
Returns {
signature: string;
stringifiedValue: string;
}
The generated signature and the (stringified) value that should be used to send along with the signature
- signature: string
- stringifiedValue: string