{
  "manageEntity": {
    "action": "Update",
    "entityId": "559710456",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe543f95f1a420b9c2b10e79b5f064acf19c42bbf033ff389b5e0de08c6e89813",
    "signature": "0x7d07f36b102f6dd4fc8eb6753b080d674e9c2714ca7d7f0dcc2cf77d7630ba161f1183eb34ef16edc1149235f4b5106dd75c4628cfe683477f9d699acb3da0351b",
    "signer": "0x7c5233DE7A8aD918D090BD36cC8C0e6273814D60",
    "userId": "559710456"
  }
}