Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'ab29a162bc751f91b887485f181fd6c0c6c82d0aac20a9819825c796e5115c33' 
  AND token = 'xhyXbLCkZSsvVPY6GEo8DN6c40b2UoARM9Z76tDg8Zo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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