{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x3ca16c15a92482af86d52debfee800e11c7a298d8018b63e2ee4f8a8f7233722",
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}