Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c90259c95decbcfd31b2cd47bd8a19a243ac2972438cd9eba01715855d5fcad0' 
  AND token = 'HaJU0V+7f72QNpTBSXMqdUF2wygyn3y3EZiWiCkY/lo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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