Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '95486e1d804284f9e11db8529348d4972e457f919261537f81d756ddffda6824' 
  AND token = 'yxyEe8Ydu5nJ7DDU5/L8w+0KUvtNv9qOEWf1Lxfs6tY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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