{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x179fa550672aa2f7f1ae7f347ff2a68e9332059c58b0a6810ad44ecb3e2b7f72",
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}