{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x6495bb87049acaf5d1f80c61d656f5957f15e65d60eb368d7d6b8f30f53c4d69",
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}