{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x3f658523452b2b2e32147efbdd637b52ffe5eab4623c136df3f36c6e1a69b7dd",
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    "signer": "0x64c01f9742C57EB71252757E8fB3fCC8a5A2E0b1",
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  }
}