{
  "manageEntity": {
    "action": "Update",
    "entityId": "34310519",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb09d37078cfd43726cb02076dba136420cba8a619ac81cd5272bb7fe66160a88",
    "signature": "0xf77e58036cb2c77137ddae283c3330385ed99b45836f4f89fd248a55b1b6426d4ba8ffaa6c85f7bf5e2b40d14685366d5ccf562ab26933014ce5f20d5626a3471c",
    "signer": "0xB344e1B51A2009F222435Dd5362d9Ec7f9AaFc40",
    "userId": "34310519"
  }
}