Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '67906651b98a4e66288f5f3731efffb14f5af08d24fe86a55c7f4e1b559f8dfb' 
  AND token = 'RdZzOetN5m8GAfurzJMJf6bnlE+xnCY92L2xMmvw6IQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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