Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8ffd953c536485cba2129f7816606fb57a2fc1ee768ab9f954eb72b8a453878f' 
  AND token = 'VTLOhvAfeNly+j/n7xl2WktxtnbNOwl1B10H8ygavBQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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