Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'efed7e6009cfdd0da2dbfba16ec0be600cad0dcbe2cf542a4cbd6590913e9e24' 
  AND token = 'rr8csRTsEHS8P7b1H3JpF5nT7893JBdoZ05565XoNoY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00044

JSON explain

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