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Validate digital sign as described on sign patient request process

Check signed content

• Check decoded signed content with previously created on IL.db.

SELECT data
FROM merge_requests
WHERE id = {:id}

In case if they are not equal - generate 422 error (message: "Signed content does not match the previously created content")

• Generate data for sign and compare it with information from il.merge_requests.data

In case if they are not equal - generate 422 error (message: "Created content has been changed")

Validate schema

Validate request using schema (TBD)

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