Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ea67c2f774a8056e248535c710639bd8925a9152f93b5830d0c739896920ad2a' 
  AND token = 'gcqv/tiUJ7Aor3Yn1l0OgbhAtyQII5z92COuKosyqaU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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