{
  "manageEntity": {
    "action": "Create",
    "entityId": "1115331537",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"body\":\"Cool\",\"entity_id\":1893558792,\"track_timestamp_s\":19}}",
    "nonce": "0x5b5b28004357f5e0916998369f74b16916b3f4bd203910f63dc30fd1ab4f48af",
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}