{
  "manageEntity": {
    "action": "Update",
    "entityId": "280028403",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x2ad67c11d17b1f267c962db473391f7a93a84710b6530aff192734c14308c038",
    "signature": "0xf356952996af6ee07bb90e91b9fdd3219fd3d920a1bc5d2d45e07d5e8d5ceffc2bce00a37820dee0bf9c17a759920f394e5211b579b1afd634bd6899529068441c",
    "signer": "0x08271132623576707765E9ab1863F2895189560d",
    "userId": "280028403"
  }
}