{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x7ab8fefe048eadd46e371e3bd231ca568af710d02e7b8164dfb8766adc643f45",
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    "signer": "0x94a38f50573d404fef5b518BB8A718805397c52D",
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  }
}