{
  "manageEntity": {
    "action": "Update",
    "entityId": "923108086",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5b8bd6a1a1d8b3103caaa6a3c99b2f084b559ed9c71b101695444fe9666cd668",
    "signature": "0x0b381302d175bbde4bfcc37ff198ed4595305ef9869597dcd4683e42bc7e3bbe19f907eb544fecddff19bd0e0054245c8e341d545d20f96d9a8150e991d45cf01c",
    "signer": "0x9beE8b4Cf6AeeE49134884acC6BF46726Ef9d81C",
    "userId": "923108086"
  }
}