{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x733e9a4ce4ed14322f2c973b5781ad8055977d63305abf6228d64f7627372b79",
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}