{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x5a6a81fdac73c2937c262e6f1b8632b2b3348c828bd49f1b3f5b77e0aadc3a57",
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}