Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '072038d586b4cea8cf575bcf301c01fcfaa8edc2d7795f7dfd94af9fecf03fdb' 
  AND token = 'hqrG/3VeGpGxBH73F5Zuyznt8SMsnTo7uL4ipOo2Rio=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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