Fix graphql subscription

[mxm1070]

Ticket(s) or GitHub Issue

• [LINK_TO_TICKET] OR [LINK_TO_GITHUB_ISSUE]

Technical Description

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Types of changes

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• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
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• DevOps
• Documentation

Screenshots (if appropriate)

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• Yes, please specify
• No

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