Sandbox

SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = 'e3284552f9c0f9e80e0fd615f7b4721c70ba4a044122810bf7924465d4452d70' 
  AND token = 'WU1FXPr8rfW6DDT4tPuh7Fmig+bw1EfwjJ80/0TG2N0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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