{
  "manageEntity": {
    "action": "Save",
    "entityId": "2145156090",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xd57e8e5934c09964c2e1d20683e4ddc7ad5b762d361aeff497183990d4e8243c",
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    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
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  }
}