{
  "manageEntity": {
    "action": "Update",
    "entityId": "345932992",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x13ea1df5788664a2db272a144802264dcd5fe411782f650892abc598aceb7b00",
    "signature": "0x6bdefd40228184dd640d8189fcebe66ba6949e3416492d8fd41a3e8e34bf81f67384076bccb6b7d508f705b50c49db055c4e943458802c38511e9733f2e5365d1c",
    "signer": "0x0282346A7cbE9AD4E926935610080D74D8587c10",
    "userId": "345932992"
  }
}