Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2fec313883fffcf53fe659045be8e46331dcd051490725adc30e18e9642e5107' 
  AND token = 'rqnloTjmRSRZi1QF3HBfdZCiHqtAG2j8oMWOw/bfwsI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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