{
  "manageEntity": {
    "action": "Update",
    "entityId": "18002392",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x73550c49583b3f93608082032e07681f5dae373868cfcac434f21221b4bed245",
    "signature": "0x894525ab9cd04fce8ae9d445e28bb5db9547a3dc66fb93f1c6dea0424fd530b452dd4fdd077622f455b128ef0979da3770b6577a8066b729c8ca65adb299881c1b",
    "signer": "0x7Eec440C3674292A66f7e20C5E6efAeaE5956B9a",
    "userId": "18002392"
  }
}