{
  "manageEntity": {
    "action": "Update",
    "entityId": "627652388",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x561cec465b581215cc310cfa0b0dec1cf79ef523b8c26e28d6dad078db616816",
    "signature": "0x25e9c7e092bcae60d46ec9459d593c82cc8204a470120e4a1562d4c9844a7c3c17c55aa6542aa107a583ad1c749e02ecfca06b6a02d2c1258f58c94f3462ee5d1c",
    "signer": "0x593c2c522858505D4E8dCd51b9eb1C3ec3841aF9",
    "userId": "627652388"
  }
}