{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x7a21df69248c3f9019a730ca3b0d899eb6f2bd2db3b2a80acc1fcd6925778531",
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}