Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1467ae0a8344db3edf39adc04f59c0c8e85c2856bb2491e9641aae5d61eb00b6' 
  AND token = 'lWFd7G645AqJYAmzescqgUqcgzNAc3FXG/1q+QlEpzU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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