{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xb8d50564591dd7ec8b3c6031e6c8c36156cef82a405fa403576be6180e622d7f",
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    "signer": "0x792632D35Fca4cc5abA0bc6B33a3F6729b4ACf3D",
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  }
}