{
  "manageEntity": {
    "action": "Update",
    "entityId": "191278210",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x56532431f6cd9c7e7c468a82c3ae06cbb1603908921bd82854336cdb42596157",
    "signature": "0xa32ee5d50f79be7e797286927119ee8d1da80e9645e82e2a99b8a49aa5c09c8f284811885a7fa13241066f3fc7d85627ff3d122a858fd7bfe95c20f0a9e424491c",
    "signer": "0x47f35dAF368203d18d08B1558C3F1BE41Bee2637",
    "userId": "191278210"
  }
}