{
  "manageEntity": {
    "action": "Update",
    "entityId": "428941685",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x10f5781ef8ffe9cb4a66320757408a3a9bb9e8129ed4b83d9f852aa3083db73a",
    "signature": "0x8fdcbc4b3470b05cc1b16e472c4658be1fde088dd4dacfa8f8bb78f63ea07d271850fdcd0d1486dd5a332045c0af32efe473f85b21fbcf59a417f4c6c96d1c421b",
    "signer": "0x9acF8CBE8f2B0d51e756C58D6d1f946A8757602F",
    "userId": "428941685"
  }
}