Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ae7eb60ee02c392a63f17f4fbc865e71e5a61723ae8a664466e32994c2132347' 
  AND token = 'xT2X+mGaIZq2N6566P8KmIt4WSBV054mm52kuV/3MNg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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