Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '033ebbd29b980e66be305cabefdf66c0f5f30ad4b1523d897b5b3888c57dff1e' 
  AND token = 'v7iNtDggahqhv7mYxuiF/Nr9ltsa+VVlQ3QZ+XiuzeE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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