Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'faf5cf2f256009db909ef8c0db1a140cc2bffd7339c04be70c08cff9d8df7272' 
  AND token = '74HoiR9qTQ82z9lAM1rn5GUSbn9gTqtaIqHThfPpq90=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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