Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'efa423ff24d90a61302863eb16ca896bdc3bde7755cb36378c60ff8d8a85674b' 
  AND token = 'Ircnm7yvwfifykYWJj6gS+vrlYNbWhQ4cdTrG/fseUg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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