{
  "manageEntity": {
    "action": "Update",
    "entityId": "116504833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf5d0df2db946838c9c5333bdbf24fc1907a24233ab92011d180dbe9aa8b3fb4b",
    "signature": "0xacc4c44a69a24befee8f8db2c36b66a6c10e3d8b09ae204b8e127f945195cc560d389c8277b37b1b9bb0849ac48afe9be92bd2a1c672c3c0fa748226d4fc8de61b",
    "signer": "0x1788E4C39d3326e598F16767C69826869594E359",
    "userId": "116504833"
  }
}