{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x51f33a0eecfd41f743616b599d6a9f9a8d1b13a0fa08995b028d8d765aaeec07",
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}