Acceptance criteria:

• all the entries in the database that have is_scrubbed=1 have the personal data fields in the data blob cleared
  • create a manual scrubbing command manually to clear old data ( there is historical data, the datablob is unstructured, needs investigation where the personal data is stored in it)
• the scrubbing needs to happen for all different contexts where we store data in datablobs (donations, memberships?,...)

hints:

• you can use FROM_BASE64(data) to decode the data

parent ticket:
https://phabricator.wikimedia.org/T418399