{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x6a907891b57d7fe710ffb01899e847a90ec8c0ec63d2ee8b9725e4e6744c210e",
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    "signer": "0x2fbC1fF5a73141F2B07c5162F632686D6d0105Ff",
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  }
}