Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '43e077dcc085798310a7ac9271348a407ca2322016555b2a14df9856ba01e529' 
  AND token = 'dByz6oa4t18XnG2SQ5R3E4qk01pyZYazb8h833NCyDQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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