{
  "manageEntity": {
    "action": "Update",
    "entityId": "538698776",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x629a1c285b123a47c01cd76c44ea3457f2c1bab339092650944f09f57cc91a5a",
    "signature": "0xca922386425e68faa58d4821c82985ee68901a9c27fbf41a831129d2862682d123aaa45636901f9ff8da5b7e46d0a858cf2852d7880332c32ceba89e55001ad41c",
    "signer": "0x08EA158C5DBfC5D9bC76CeeB79Cc59807c3AB8Ac",
    "userId": "538698776"
  }
}