{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x9e8b5cf3b5dec866b4237ae3c58eeb0e3ddfd4401f084f6c95005a0c1acbe8e1",
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}