one to one relation. how to retrive data?

I have table FriendRequests with field “to” (1:1 relation to User)

In REST Console I’ve:
1)set “Relation” to “to” field
2)set “Where” to "to.objectId = “5571622C-23E5-6834-FF0C-42FBB7496300” "
But response is “Invalid where clause”

What is correct “Where” field to retrieve all records that point to specified user? (FriendRequests.to.objectId = User.objectId)

Try to surround objectId with single quotes.

Thank you!