{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x3f1ab97f0a3203367a5863516c9b1db22c4219aa8ef91d57b708f4b3128a9130",
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}