public function unserialize($subscription): self
    {
        $data = json_decode($subscription, true);

        $this->operationName = $data['operation_name'];
        $this->channel = $data['channel'];
        $this->args = $data['args'];
        $this->context = $this->contextSerializer()->unserialize(
            $data['context']
        );
        $this->query = AST::fromArray(
            unserialize($data['query'])
        );

        return $this;
    }