{
  "manageEntity": {
    "action": "Create",
    "entityId": "185184580",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"sick!\",\"entity_id\":1535472476,\"track_timestamp_s\":49}}",
    "nonce": "0x7b997ec78c37ce82684b8a7e252faf5899b9bd175c80f2b875cd5e3acf9fd885",
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    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "2686"
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}