Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '0f283c28386e3dc9f01630ae6cb8c9ff936bad157b9f6b8610304ccaf0317285' 
  AND token = 'QatuM/WkxlF/xZiKvFobfCxXFg5hTtTF+CtOqOT2bm8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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