{
  "manageEntity": {
    "action": "Update",
    "entityId": "287318706",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x76bbb54b511aed159c41fb5091bc1eb5b2294b46ba7dba2b8ddc36442e075179",
    "signature": "0x4029cd02fab52875deed9b4bd988fccecb010067a14ae59bae8e0302a9fac4b240bd5e4d511d3f8756c130b75e1a802acf2c2cc4f2002e514b42e30a33768ba41b",
    "signer": "0xEe3905136f4fF4281aE4d532C5B3c71d4C5E4cd0",
    "userId": "287318706"
  }
}