{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x2aa7a58a29d18d47f18baf0a3f45e7011200045e7fbeef7eece68cb24f08680d",
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}