{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xa4e36e19c233a1bb4d54a4b695f58741c7105e0f53ce6b1f25425ee7fe6a7839",
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}