SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '0e26bc6cfe7131b2d7e3662ed81ab38f5a8825f1fed200877d9abbe4cceb0136' 
  AND token = 'LDeGdilFSn+/MkYV1gSKTRvKZThGoRmDfsxkJ1vZsXA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00058

JSON explain

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