{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x61964bcda9106aee29f907806f7203ce5cb8db09c5b79c7e259c89a1237e60bf",
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    "signer": "0xa1C679620446d0a85D56a3845b32A6045fB5Bb84",
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  }
}