[{"_id":5,"status":1,"title":"Central station","attributes":[{"defId":1,"value":"388","name":null},{"defId":2,"value":"","name":null},{"defId":3,"value":"Merkez","name":null}]}]

db.collection.aggregate([{$match:{_id:5,"attributes.defId":1}},{"$addFields":{"attributes":{"$filter":{"input":"$attributes","as":"a","cond":{$eq:["$$a.defId",1]}}}}},{$unwind:"$attributes"},{$project:{_id:0,title:1,value:"$attributes.value"}}])