Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '99d251df97b38b041ec2c2fe8a0b8733a10e5abfe89ae3a44a8392cdff8c9031' 
  AND token = 'bQJjPe+qFeBv63315eUArTsfhyAyt8Ie2pR0LT/o9AQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00048

JSON explain

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