Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f07d958038d839e37efec4a92f993ff4a6932f4e9e3fd9e09c3d94a68551b632' 
  AND token = 'oelTVBWRGVFW636/Dv4oeCswHmL2WYSPRTfEW2MWdwU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00047

JSON explain

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