{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xd25d113ed48b5d60d3085cae5d0f0faaae72bc91c19ee12c78105d79a06cb6cf",
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    "signer": "0x2205833bD910998b6F99FDbd53F5FBd387134b96",
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  }
}