Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1cc712ade1c4689a827a082b423d25ac91f6cb6bbe2d3dd50b166a9fa6a8490f' 
  AND token = 'Pg5gr/jpcrS0aRwlc5AWIPUY7treyj4aAB/dKFD11Zs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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