{
  "manageEntity": {
    "action": "Update",
    "entityId": "245565231",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x31102f8dff82ed581a7893f0e5977b8887066211f2d636e47c2af45f8335bf37",
    "signature": "0x672934af8231d5ae3cb09890fd23683dd7551f5093b4578668ff57e92735c00b3eea5e0f186e217584c90f4439d225aad57a3ad13f6ff1e6aac42828635187f31b",
    "signer": "0x4Ad80B5AE9a919a8794fFB27511cC7171BE68f74",
    "userId": "245565231"
  }
}