Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'aed0070700f40f217cbc9df2846fe5e6a4221f815631f1cb5653bb79aaf92183' 
  AND token = '/B44xH6xwwY6uzIxTyL5EzcpKJAI6mHTDowPGmH6yAQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}