Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '1a582048fa9d9fcee9e69252476889c5b513d75319a5d88ed2d925e19bc9236f' 
  AND token = 'a6Rw+2OAQPhATRdvXBKvtpTksfB2mfAEyUOeR9M61ps=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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