Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '426e6a242bdf1dc87fc91eb41adc4011388ce3ac794776e9898f31d7b10816e0' 
  AND token = 'PbF6npvY78w+UUugbZJ8xCzlmZLx+4i70HSKZXQbDu4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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