{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x81ac961a27d80c3707692accac0a2c57cef3da8afe51b4692b44094e0518cc64",
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    "signer": "0x0bF980DD3287c61Ce4f6828035973BA1F745C49D",
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  }
}