{
  "manageEntity": {
    "action": "Update",
    "entityId": "106767999",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x1c9b62d57a2ae554bd70a8232290b0f52ff5deb334bc313863fdce375b568bac",
    "signature": "0x7954b42b91cf3cd58ed9db6a8396bc90036ca5e748af98e5719edbe6295875a8619d37c39ab27ea912bd9b44650cc04a0e1317d9fb3d5f7a2361521cca9bd3741c",
    "signer": "0xe0C59d9b33E85aDF235F6eA7a4c64606D3e31BE3",
    "userId": "106767999"
  }
}