{
  "manageEntity": {
    "action": "Update",
    "entityId": "115412780",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x326bbb7faa80197df29d9ce8bb30e2347df402c1430cba97e2eb13b0e96d7aca",
    "signature": "0xb4ca072038b8a9ffe11c62c6108ceced45f709dbc8c2fb4271f05c07e0bcc7814b8c3bff46e894e4620f92297f5daa24d3d4689e0faaabb84ccaa43b6fa54acd1b",
    "signer": "0x5a7f1166F6b15270d1F073Ce586a36066B225626",
    "userId": "115412780"
  }
}