SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '41bdcb08c16cce4b0e46510282ff43f907cfe694cf10f2efae8414d17194d058' 
  AND token = 'BpZCJlxOWvzzVprzmX4/fGb7IEGUuxaVxhkzjD+OL+o=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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