Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '72d56d4ffb65c46526a4b83fc812d21d5cdfbf8fa7b33fdf42d92375c2a75054' 
  AND token = 'kYyjS8OSk4/H8oPkK6fE0pye23actowQx/4HX+bn9mA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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