SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '07476603026380084ce377da4c801de9558c3af1b9d8c13b4627edf1cd0ea497' 
  AND token = 'BCUkfgJnoPuoAUr/pm+K/XeUdVt2xQ1af6EPJpVHvHo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00050

JSON explain

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