{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x7945de88eb457f863cee83f8c232361ac2309e11f45b0ce739894536f8a7be38",
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    "signer": "0x1F33923DF5E9a413767e7322d72824f0278fccFE",
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  }
}