{
  "manageEntity": {
    "action": "Update",
    "entityId": "267910787",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierajypbxzo4jjsc365xj33nyonhkgumw7loicvldrkdnitbmcaw5ubq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1447218742},{\"type\":\"playlist\",\"playlist_id\":1285216957}]}}}",
    "nonce": "0x474ec67e0bd63092e6d1cd2f8a6fdfd1a8e6395531bc0786ecb9c0cca5261a01",
    "signature": "0x23e478ffc2ff18128afce6ea716a3ac12906b66a25c41ec684c1acade4daea8145e229face05ff9292fd3efda7c68694654ecfabda63754256d44ca425f798711c",
    "signer": "0x29a7E09A087404bE0d171B4ad8ebc3cE31676354",
    "userId": "267910787"
  }
}