{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xa4da20d3b4035301b18a0a7de1dfa2bcc49f593543fae3e4fd0e6c20b1f91f49",
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}