Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '974c78e69552a9540fa136408cabf0d7dd8e4b195e92f6a2a14bb76d835c470e' 
  AND token = 'BgGQKZvN6llD0CHL4nrvjaesevgVa3Bfmil7ZG6qQyk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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