{
  "manageEntity": {
    "action": "Update",
    "entityId": "140169796",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xcc1a2c318ddcd03e6552612866a85a76bcde04fe0928f742c8a226a468b75955",
    "signature": "0x2fee70b9de51cb99de399133314d29ac106508641c82b669321342fc77294ce425782455463fa15dea936176abae0ce8232ef410c3f076524bdf29f40ca72bdb1b",
    "signer": "0x8D25bB22ae062517A949bE42DC902b72e919128C",
    "userId": "140169796"
  }
}