{
  "manageEntity": {
    "action": "Update",
    "entityId": "116504833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xdb7655d24610800ceacc4288c761466ed54276cd58885ce8e629c10c35158eb5",
    "signature": "0xea16b681270c0ae4781022ba2790e733a7fcb491541d26352bd4ecff796f40d65fc325240d831153541e9023a0ba6efb78bfe757be662158071bdf14ccac796f1b",
    "signer": "0x1788E4C39d3326e598F16767C69826869594E359",
    "userId": "116504833"
  }
}