{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x99419bdce240b4ae72e93bfcdc166826d78d46f3cff390e43f71985630b196a0",
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    "signer": "0x1af33C01D3cCAf48D1FA93d5c64d9E0444d4a7cc",
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  }
}