{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x6577398f61f30949f20b760bfee1495355fd0df29055fc10ad781bd60a7c7917",
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    "signer": "0xEC2B62b3ED30F5dA0fDA3f6B0379A9E9dC236921",
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  }
}