Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '6573cc4b46e34142846547ec94cb58ff7d6ccb16d7ced6c5cf9cef3fc6bff288' 
  AND token = 'YeDGB2FcD4572MxX8iH/SZ/3inoI2g397HNnkLvjvUQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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