Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '22f50217ad123addbd6bf43092218b7780c424043d0952accf060cec6cc1bdb0' 
  AND token = 'dbXoI38Y0asC3XYawqE3yIfUCHkfI5QTRU1Gs8ecgfQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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