Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '3269d96decc9ce86c6a39fd23cfa6c9e97a707040592b2abbf8a9d684168f108' 
  AND token = 'nxtr/IQXpIKqi7LRdUw/OiOe7t6HTEMih7XNbHzSMao=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00014

JSON explain

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