Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c1eee66bd40bd874d1e78ed9afe77b3886048ca04d35e1df61dde5be42481732' 
  AND token = 'YwbMtCXvuL7Grx0xD0v50w1h8TIB2RgivMM6bH0IXuU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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