{
  "manageEntity": {
    "action": "Update",
    "entityId": "444965341",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x2c2703c4eb14c8484d3ee33f724633b1ff2eef8cf56700d03cdc4955838dd16f",
    "signature": "0x9375eca8e7ccabcc3a1cbc2dfeb95adc12995a66c07c2a7567ccd37dd1f6aa7800a0c4182852648c76676e1ddf4d46bb66273198f749f120d9b36381018271d11c",
    "signer": "0xdD03ED106abBEF4982159500e32B8602B985a69B",
    "userId": "444965341"
  }
}