{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x0ef592c111e863434e74c9918ba892a45b9481662e9372266862fdbb4d160acc",
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    "signer": "0xFBf95c6bc807F6f3A75aaD2CcEAE23E5EC61169D",
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  }
}