{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x20eb691fd276ea781dce8e002aed9d949d08bc8b256201ec28431a2d98373b1c",
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    "signer": "0x91C1f0a26f0b26BE4EABeb19E371752f000924a4",
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  }
}