Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '43817913abf623613bf9f2e653ff11646b327619cfc8e51969d17b2db493a24d' 
  AND token = 'LT8SvqFOrB92eewQSqRMMslZuPIyhdNZViJyhc6eqdc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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