{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x63f3c51d28a8d78901cec6bb339276188794fa60efb5e40bf3fde40b8d0f00d4",
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}