{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xa4956bf1fb5db8ef7dfd1eb1bd30169202ac8d2ccd9423155f986883b4a0c460",
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    "signer": "0x1C09751B99a572c9F126eDdB2293952aD095B442",
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  }
}