Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '33c9bd9051c31ffa09dfcf0a2225fdc7c7fd3d11de1099a74c19f91b6adeeb55' 
  AND token = '1x3taGrH4csoI0cFi2mNW0xmOufErO8cJi/dx43D2hs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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