{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xdb83f8770286b19eb4fe49c1d1caaaee3f2f9c9c43c189ba731121e3d1d17733",
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}