Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '72bd73915210f4951671a146df22ed856e1b14aeb9a3a73a1d30a669b2b04f76' 
  AND token = 'nwVLIz0vP02Tr9wpNaX69yUMUNsM9oK0yX7BviKAjKo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00044

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}