Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8070d717cbb9c14b1d817c74ff9f90a809d3fed23f1d14643cbf0890ad005958' 
  AND token = 'BxIg5gCCN+E74YYanvSay3sWg21zoA7GJ4rHzQuHz50=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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