Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8add0034b47530c962667acd89113f6ea3cca9d0002fd711312dacb1fc43ebc1' 
  AND token = 'Z4Nc2rIeKT+w7/zv5TmmINRJ033Ucr1/Y8q0D1q5a6Y=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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