Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0abe35af2c357345b4a6d6a98bdfedbe882a8910e84e606df8051017ec9a13fe' 
  AND token = 'wqz9g6vhagphzZWZZbQaYeQzczilu1JZUhIf7EemKJU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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