Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '22968203808c61c2640f3b09e7d1d2aca5869d2b7f95373733ddd27b870b5129' 
  AND token = 'tZoO3oet1Adj18csK9uYQP1LOVvCkyoiPeX4SlqH7fk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00042

JSON explain

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