Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd30021f975414e531cf489f9df9be6f26477b9819438ce148ece1564a19aaf8c' 
  AND token = 'VYuykF/6/qTd0SRaIZfX7H2ZGUKkyUhH+e/Wc+fstUk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00051

JSON explain

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