{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x04e9c0bf5063f62a11fb675162cb005acd0f7d34de6bf92a3ef86e1361d4283c",
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    "signer": "0x7BD87F35c7C78D09659bb82c34d92F601b3A3E2C",
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  }
}