{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xab84ac5c6a2abb60e6767ac3bd4ff12e777bc3fc863a095df38c407c2121602d",
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    "signer": "0x0bca925B84aa09b17BB9A338B5fb37b2dd7F8cD4",
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  }
}