{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x56ff73e4ae277fed1f3d5bc1c10646a7a8787882e9e8026f22ba122d996e26bc",
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    "signer": "0x8f4CD6f8125480f667beA2F67A6545AEF5029883",
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  }
}