Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f3acf9cd895406d0316845ed70a2895503b3427b5631a7a672dc417c13fa4701' 
  AND token = 's9zQCl7GZ8htrX4y29Or913PO3kDYmoP4PyU5VkyxKk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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