{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x872f9ee02c99f89f661d34ca2700b0e779994a997697388bb1c5faaa0e4ee631",
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}