{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x03acacb7ea821a9d8da787abf831e169ca2495b9ff85c642d734c5b8f1d2fde4",
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    "userId": "331746699"
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}