{
  "manageEntity": {
    "action": "Update",
    "entityId": "116504833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x79f70fa7c77456d0a2e0e5e70b9f7b24f1999da872851ba8a954a6751bccd424",
    "signature": "0x0b451f3786efbd69eed5f146d47d6de98c8c6ef1c8bb24c0a34c53afd7972c6a0618bb61ec972aae568ce8c1e7c91331cd8a7d76655a667db720ff30479535631c",
    "signer": "0x1788E4C39d3326e598F16767C69826869594E359",
    "userId": "116504833"
  }
}