Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8863dde7f08dc0bceb8b2ca943f54e60fab4025d486fe4917256cd85ead518cd' 
  AND token = 'niVWkGLl6O6vk4f4PJz0ojztJ9yh33EfDWpD/dDO/wc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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