Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5ecf2fa8697233ce43b1da4ac399778cd618a1e32599aecf85c51305ba8a7c2d' 
  AND token = 'YRXDOpo5q3r/a1XHfW/0PV9g9F8WMJwYATsg1WYlU5w=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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