Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '72614e73a0bffbe3eaa8fa926aace504016407790a800864c4a0654963147e25' 
  AND token = 'Ag3fxCVeEu5a3+XnHXXYp62fICxiYVB7ComJ3TFU6Dc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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