Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'cc85b68f4220989a25167b7500ca5cf4781867c38b6463b433784e1714c48b1b' 
  AND token = 'KfqccfEPdb/ECFYTcdSKX6v/voh5qmPoYIUeovuF7Zk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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