{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x2a4cb129278d6f7f0a197f4f5b5bfe9c0a61cf8aed72d3776e044d2f9e1b7467",
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}