{
  "manageEntity": {
    "action": "Create",
    "entityId": "1469233344",
    "entityType": "Comment",
    "metadata": "{\"cid\":\"\",\"data\":{\"entity_type\":\"Track\",\"user_id\":52309,\"entity_id\":1784392505,\"body\":\"love love love\",\"track_timestamp_s\":116}}",
    "nonce": "0x20008cf19bdfe0fdc14674834faa8446542791294cdcc283c22a52ffb70e5cd9",
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}