{
  "manageEntity": {
    "action": "Create",
    "entityId": "545090693",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"Cool\",\"entity_id\":1947749472,\"track_timestamp_s\":31}}",
    "nonce": "0x1c904138749cbada77081d77f066cbcd019953755ce3a9a59af14d29fb403821",
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}