{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x5d55f467b160eb0c98ea689c14cbfdaa74ed09693d1197221bc0ba93b8fdc4a5",
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}