{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xa60da93b03156fa8c99eaae82c030aa40b784d2babd338ca92c0c72e0c254736",
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    "signer": "0x3369f1f948a158e3d6Cf146Da32864100609ad43",
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  }
}