{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x7f3c1b5d2e64404747f019757a3967c01c565fa5b1d99c19cc7c15eb89c59d75",
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}