Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '61fdc4b8322fa726bf9ad39de53e6f7f11c8402bfbc44d7052edb2b7f413c41b' 
  AND token = 'mY9+4/k7J00sl2P9zoeSPNkKBeS0hkbK3fsboIWV5NU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00039

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}