Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ed4c435362c01c7d7fb49e22de3ec4725c8e33ccda0708ef0b11f06aeb828a95' 
  AND token = 'Wah5XjvgoRJf+9MD1P0jZGeOcUsC12iehg7dXiNQU5w=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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