Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '6e2d3d859170136598ae6b4e3a8663f6a2eb5e37fc81c5e52d7d935cbd80e110' 
  AND token = 'JwpWKqWbetN8xZz2qGj2di9YTxx88E/tT6MybFM8Vis=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00014

JSON explain

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