Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'cbae1e205b6075881015b46616160b85f50bf4a9b0a5638a264052b41085e68f' 
  AND token = 'fg1L+1x4qJqw4u6ZhtRj+ip2m38BjMoGwa4FLiGwkO4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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