Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '17f93d849edc634bc0d47197dc1d5b326b374e2c8794c2767ba9a0292e3e1fba' 
  AND token = 'g2T74+zVs1neJPuzfOW5A6Cx95sbO7vkJ2Oo5dT7VCU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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