{
  "manageEntity": {
    "action": "Update",
    "entityId": "633494619",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x64b3edb596582db59e206e7fb9db643575d828f8bf18829e40e3c19c79cfc40e",
    "signature": "0xa1b6de97ed4c6d84e4052ebf3c029782889109b22b4ef7492c5d7ae55e360f730992b3fc7bd81b3f4f1c5c18e78b10136f87e88fb00f9ee9daf81f7161fb0eeb1c",
    "signer": "0x7B499405130cFEFBBaec9980A9E37BBE42E8589D",
    "userId": "633494619"
  }
}