{
  "manageEntity": {
    "action": "Update",
    "entityId": "109027437",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd333670c45961eced01d926eacd4f5ac21915c2541727617bcdc91280f38767f",
    "signature": "0xa042995e83edc1781a8afe20cb1a3ff564db0d9f41da8b8a42f96960b123ae1a1da5b5ddf77e0f377c83a6ed06e265f6bbd94868e0c1de65f3c3768148ce02021b",
    "signer": "0xFc050e06c6c80796D91702E60E532EBc80387f98",
    "userId": "109027437"
  }
}