Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '093342fae5f0e60141901dc9f20d48c38665fa7c48aee6ca1eb6607d5216a62c' 
  AND token = 'CSW0HnVuWApmN1ZLKavaCtwwJZ6W5+jhkJb36xt5a40=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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