Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2e4dfdd479699e2b0ae076c25e2a3449c356ec845db7ee04b07df8b9bf3caec3' 
  AND token = 'yMvLPxrddbmeR7lJCjHsKjU2WcK5I4fFHc0TAHQNjPc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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