Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '0cdbbdafb5c0ccd54150e53bfccafa34c63f51a0ee703124fbcbb810add138ce' 
  AND token = 'Nvwcz+TPX0BWcVfn72wA5p8oKWFAg7tJg9YDijl7CWk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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