Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '3f357049403e990319eaf12adf79374d9cfa99b06dbb8efc967b77e93faa72ce' 
  AND token = 'IGHeRYrLCkV6wrnQ6lHFGcIas8TD8nd9h7OfDl+3eYY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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