{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x24f00fce460d3e20f8440ee9299ed93eb4860eb3a8918914eeed6417540962ee",
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    "signer": "0x547F6ee30f5017a6FC51F2559bC5167d6da2F2a5",
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  }
}