{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xd5fd8e7807d0e2efac3f8ca3d7c1ca9c67a1d2771265bc9be2e9dfb66884b286",
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    "userId": "749228874"
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}