{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x1e8143dd1d383fd69876e85ba4c42a9f70fcc220664e8a499b873ce8ede07c6b",
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}