{
  "manageEntity": {
    "action": "Update",
    "entityId": "487406085",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x7d88ff53f2c0865b53b15290e316c5c666ebfe9ee1641c3f08e068acae453fb5",
    "signature": "0x9991abd37c44f6fad33c3986290599e740c44146ef9003d3903c21a4a2f368e013fbfe6590a59b118c351dd940c4d3872e3b76884ddb670dacd02e7cd7b886f91b",
    "signer": "0xc2B329a6bad81Ce4678601c83C7F923463663872",
    "userId": "487406085"
  }
}