{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x87c3252ac473bf8fac3959e80c0e82fb681c41b4e7340b7a2cfb5dd69960616d",
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}