{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x9f640faba76121e0b2a42e2b6d2848850617ab9c1cf11d4eaa42fd73d0592ce2",
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}