{
  "manageEntity": {
    "action": "Update",
    "entityId": "325907360",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x077eda3f0eae9cfc3eba5a10f1394e024f0b7e9d993772d0b95f4aa18ea99e2a",
    "signature": "0x984704467b537fda08482eae36029c6e229952aaa4a19db9d18cb20f9138dc361f5e22766575d0860a191cdb65e862caa630347a3a780819c88c648df82178171c",
    "signer": "0x9651A4Aa1CCFFF6542777B00aC51EFFF1e0A1c40",
    "userId": "325907360"
  }
}