Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7b2b300e37d046d3cca74985a9aeff8bd7416325759b9f6a99a5e9c7f93f9a7e' 
  AND token = 'Nsnz9o85hyIq4zEUw63mrn4R8B1jjmxDt3GP2cA5I6A=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00047

JSON explain

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