Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'f80fad826c73c49880a7a96267fab959fd05444696df5bd6d16f4940af572ff9' 
  AND token = 'Rkl4M0HK6o7SxLj1CZfTYJrj00CChv/nAyJMFlYWiio=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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