{
  "manageEntity": {
    "action": "Update",
    "entityId": "190212880",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xdb59ce9558c3a6030fc45297e7e1c544285698a3564412a8ce6f23948db5b1b1",
    "signature": "0x9074d1dd44e1cfcd7c81004dc720c160ba532c4787a68c7e14aa462f06821b4e057ec83fc5d6f3e709e7a3b5764197266722a9312be2f892f503d3e6d5f555ca1c",
    "signer": "0x120C44278979D19B721174961AF35cB266255226",
    "userId": "190212880"
  }
}