{
  "manageEntity": {
    "action": "Update",
    "entityId": "891351056",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3120ba8962839a4b25d1be733bf25fdb83fc057d688583b1d06bf7833af1bb5b",
    "signature": "0x99242bfd2bc94e67359d6e42b56b451b4bc96c6077488ace74a25f1c220fd9e1566ccb8555cb9f3fe7c76bbda9452c9eebc26652ce4d6f23b56677b5b44e8b5d1c",
    "signer": "0x1E3179d8f63E67f26001D47dA032ea9f0f61EDB5",
    "userId": "891351056"
  }
}