{
  "manageEntity": {
    "action": "Save",
    "entityId": "69915",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x8415541f9c7dd7c31fad55937ff96ab03b8513eca6d56eadd6fdeee6a35380a5",
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    "signer": "0xbE2860E3A43979e604Faf88CAEC0E4210F7b3Dac",
    "userId": "128910477"
  }
}