{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xe43adda1b4da2b34f21927da3a339c0229e0d39d0b8aebef71cc8d401d4b3de8",
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}