{
  "manageEntity": {
    "action": "Update",
    "entityId": "515363759",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x414a599d90a1c1cae9bea9217940bd7c433e6bee004f77482d6244c589d7e33a",
    "signature": "0x9fad0e8ec6b5fe19e5d7d8bd16437bb9af3bf0e32ac5d21890957d542cb72d160c5b63daadf9c26db463b9fa3913c4f010f9bf70c3599623cdd35eeb73a2b4a21c",
    "signer": "0xCD762c730aA47C85D88E1E0880826c7fa56F7bc2",
    "userId": "515363759"
  }
}