Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '411390a3d05f70ac495cd648a13ead1d2fb802c4b35f224f31cc6d399d92ea07' 
  AND token = 'Jr3f5N9mabVlu+qBAQxG7EJbpf//5FC3Mr7z9Sub92Y=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

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