Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '939acd741332566cd7d50e1ad6aa37764b902442ea717870f5d6ff22c96974f6' 
  AND token = 'WoxT5nRr1UvOjICZhAbaQOcuDPhR/AIfaR3LLqCQJM0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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