{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xaf6f15a2fcd8705167536a55cf254d3c1e2b5e8de4ceb4a386da45915f621b49",
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}