verify = async (signature, publicKey, data) => {
    return await verifyMessage(signature, publicKey, data)
  }
Verifies data using a valid signature and publicKey.
@param {string} signature A signature.
@param {string} publicKey A public key.
@param {string} data The data to be verified.
@return {boolean} True if the the data is signed by the publicKey, false
otherwise.
@memberof module:Identities~Identities
@instance
@private