Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '117164965c4a9d386b0ca0f4eff0e7222d21c8c65fcca36aa8719bd5b3477986' 
  AND token = 'o/gFbgBD1NxYf059aVgzVcD9DDjoZeEplufjFSgDWSU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00052

JSON explain

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