{ "fields": [ { "keyId": { "$binary": { "base64": "EjRWeBI0mHYSNBI0VniQEg==", "subType": "04" } }, "path": "encryptedDate", "bsonType": "date", "queries": { "queryType": "range", "contention": { "$numberLong": "0" }, "trimFactor": { "$numberInt": "1" }, "sparsity": { "$numberLong": "1" }, "min": { "$date": { "$numberLong": "0" } }, "max": { "$date": { "$numberLong": "200" } } } } ] }