Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '469c0845452e2ff5974ee3c6162039320dd80bc95cad82cf65dd96a564eadf41' 
  AND token = 'ffWnq7JG3J3GAVjo6PU4C+73OMyYgGyM4RoKSJo84lA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00042

JSON explain

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