message_id: routing.transforms.allow_properties::1cXrbSwmXwVtSjAHB3pKPP4BnJ2
exchange_request_body: {"channel":"server","context":{"library":{"name":"unknown","version":"unknown"}},"event":"Allow Properties","integrations":{},"messageId":"routing.transforms.allow_properties::1cXrbSwmXwVtSjAHB3pKPP4BnJ2","projectId":"u7B3YLALdl","properties":{"a":"A","b":"B","nested":{"bar":1}},"receivedAt":"2020-05-28T17:10:50.809Z","sentAt":null,"timestamp":"2020-05-28T17:10:50.809Z","type":"track","userId":"mme-e2e","version":2,"writeKey":"1L3lMVVExxT538za1SC1GdcdWUB1HYX1"}