SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '2f07da623166ae0548f7fcb2e24c133b72b2fd67764bb3d263ad875a0e2acbe3' 
  AND token = 'XLkwueBIgZpYleFP/GkD2EjJyWjUaR+H6Y/IdLVxodM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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