Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1bba3c3022fb1f503a9e0112191a32030c767527739b0ba9dd0c883bfceb7459' 
  AND token = 'Q/xhvpzFNeb3fyaCBHXWqsqaXZzAF/fDzJzxWLE1WII=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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