{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x63c65b97ed12a49f9fd8b856aa1461adaa8a71a86c06b097e2f1a46464c06c58",
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    "signer": "0x55fd27AC924de4a42599B2Ba833f681F5454E926",
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  }
}