{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x9269c551ad5998ab335c46c5013841034040fdb31c70e6cc24deac9ca22e904b",
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    "signer": "0xEEAa84786FAda8Cfe291Cc0469c585882Cfb1320",
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  }
}