Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'dea2f4c4afb7647848882e255199b2dcee840aa8c66995528d6530e8a11be8ce' 
  AND token = 'F65Tqx3WOhBweOBVoIQQ8l6MG7DovqvH/vB4mfYUoMU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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