{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x37aea5d0fefa01ac1c8a968457aad55d2b1461ba73881911c0eb6e36611e5b28",
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}