Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '359b6f7f648b43ba05ac74ffce6862554edb8dfc85af1159090d7e079a9e64f4' 
  AND token = 'rGE8Taixu53+KmQ03QbUps/hTA7s1rguk+AnCk7Ga/w=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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