{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x221878e6009957e03945c0df22b37cf6b2075af4d770b931edb0b3f59c4fc0e6",
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}