{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xcc3ba113acc8f3c08ce2310563f30c61924bb9e8eda866dcd4b7d8c9f452ef7c",
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    "userId": "512022848"
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}