How to Import a Csv to Realm database using Realm Studio

Hello, I am using a csv to import to my Realm database (local realm file) using Realm Studio. But I get an error,

Error details: Error: Importing data of type “object” is not supported

It is failing on a column that references an ID from another class within the realm database. Is there a way to format my csv so it correctly references that ID? Current csv:

Please see bold text for problem column

_id _sensor _timestampUTC _timestampLocal _timeZone _glucoseValue _crc
2 SensorEntity {_id = 1} {REDACTED} {REDACTED} America/Los_Angeles {REDACTED} {REDACTED}