Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '027185f487375ba4cc3e3bd486079d2904141d54588920fe89795c0bb2dd0c6a' 
  AND token = 'bvy70yqG5UTSzHD42D5VwcLGs/Ed5lGh6CyWdjVV6TU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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