Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0305d8a6111c5eb27e6f55e6c086f1be93355393e145e5b54db1177dce4e9901' 
  AND token = '/ZKi8L+kQOYJ8d8BIsy7pUXChDsUzpYvRrsNcAmm8do=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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