{
  "manageEntity": {
    "action": "Create",
    "entityId": "1438062664",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"user_id\":52309,\"entity_id\":1968952880,\"body\":\"woah! love this\",\"track_timestamp_s\":42}}",
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}