Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '89629188ac1d3fe880b5095df0773c1ad9928a0ae24fa6c6da44b9d48c39faee' 
  AND token = '4R83o1k/jNaAjHEf86nBq4Mj6EVf/E1dmStURAAModw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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