{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x9a8da5329d1f93d28981f05785739f96a499c2ae8e7e14185b25d2386afa2848",
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    "signer": "0xe794b8da943c2CC440088f3E844a9B5968358c9C",
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}