{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xf0341071a138a6d7cab8539eb172e437341aea919b944bed901e0747f83096a4",
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    "signer": "0x94e50caCD7a798747FBe7131E5A0e36a9ECe9Cee",
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  }
}