{
  "manageEntity": {
    "action": "Update",
    "entityId": "733151707",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera6wdot4m6fzi6qtwbil5s27arc5uopdlhy2jc3b7w34rea2ewlx2a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":828514718},{\"type\":\"playlist\",\"playlist_id\":682794130},{\"type\":\"playlist\",\"playlist_id\":1918575531}]}}}",
    "nonce": "0x53e5cf1eb94e83f33162adc4dd67bca71c7d78576ff62ac38f4557e448fc645d",
    "signature": "0x343d9cb17263d7a5d6edfc81ee8cccaec5b17bfa8a860d3ff0479e89ee19a03e7de433cafc67f9317492b4df530b983d1f80547bd6d4ee8d5c474ec5e82f11ec1c",
    "signer": "0xEA3c43630FAf8cBd94c426a299efC9E5AF591b9e",
    "userId": "733151707"
  }
}