Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '846d79d718e370d11a330a3787df3f09e5fdbe60ee04e0d81f7fa88686f0b203' 
  AND token = 'wYQXO7fHSLlNSYYgCzwDZb6Choyxyj2hoFzzCah+1FU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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