Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'daf085cab65e1a756461e55d67bf9ce87b9fb84e469e3e65e925c400bba4a7db' 
  AND token = '2+Cpo/QESI4r3y001kSWne/P6QI4X+1OBrusOuzWRZE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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