Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f9d222aa60d7a0bd18b7163f09f4a84c05021766722649379997fac475a9233c' 
  AND token = '7Osi06KfJ7WO+olxvomOhseSdwa+aHatqciEf58pgm0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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