{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xd9fa7622f869aa40b99fea8eeaadf260b3f3eceffccac14a99f4f14a390b0a0b",
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}