{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x14e7472f785f018a4a4511dfaf636562548cd3cd5a69a4264ef74136f08d27d1",
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}