Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0dae79031dbd7f81f8b31448e7c18bbb8ad57d0a3c2e54299996203ae4ab3ea9' 
  AND token = 'oQJXO/eV62tGjQbYzhO3st789Ks0mQril1UPIQHyag4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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