{
  "manageEntity": {
    "action": "Update",
    "entityId": "889836447",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9e2ea73bad07ff592fc6a6ff0a837559d944d909b38f245581ee25f34d84d27e",
    "signature": "0xf55b95042bc90a107f8b7a21aeeab79b74b6c9d4faddaab0e4245a410682854f0c99403d5dab7c590e012c31e03744c859670d6f69408010ab5fe464556200c21c",
    "signer": "0xf09c2a0ff4B0aAE8F5F53567d5F24eCC558dc13f",
    "userId": "889836447"
  }
}