{
  "manageEntity": {
    "action": "Update",
    "entityId": "633494619",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xbc0006e5e8d5f7f1bb8a5678c7581d4a17bd9d7e3eaa6b5aae27ec3c50bb54c5",
    "signature": "0x0b6431730906b0b13afa66cc8c2b6fb0fedc7fcc4979bb04e20cdd8d91b397ec03b091629f5fa126f1fb4e32022ad7ddd20fb4dab59ac4263c07170bcce4a8861b",
    "signer": "0x7B499405130cFEFBBaec9980A9E37BBE42E8589D",
    "userId": "633494619"
  }
}