Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '033be7acfece67c775c7f1ae3d9b3ad419415c4472f0592c4d7319201825e4f5' 
  AND token = 'PvRbYgHKgWfIC1H92EdwIKJDWSNaHWNe8MASIDgmc+I=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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