{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x0ebbd53b9bef3aaa364849aa6d8f2be9a70a9e9de56f3d0537c94f6243080546",
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    "signer": "0x8c716F932726b40bC9E1CEC18f2c93dc876da1Dc",
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  }
}