{
  "manageEntity": {
    "action": "Update",
    "entityId": "255422853",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraz7j3ccs5cygkyoun274acrftqcqe7zkvof7zgavkp4vmhsr2ulqq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":379200064},{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":659251730},{\"type\":\"playlist\",\"playlist_id\":870655770}]}}}",
    "nonce": "0x2bcdf77c1eae33c076adb116dfeb4d471942fa85e9ed01c2061342186f322ca0",
    "signature": "0xb248823be1ddc765561346c7801d0289afdc82e8120a9ea5a7e5017412f0f444118934ac09e1937061b0fb4cbd1a38ab3ba7c9114c4af2c989b298432ff01e931c",
    "signer": "0xA62C2151ED59F53448932d89dc12041faAb8Cf36",
    "userId": "255422853"
  }
}