{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x73b06300325c96ed632611f9d1a4c814ecd13ef786f8da3716046b135186a65d",
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    "signer": "0x0B4CBD3E1eAB90219fb22Be62f1bb518f43fA87f",
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  }
}