Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '82b3a030fdb18ea6187823a644ab880d81970bca929b34cb13175088865f3179' 
  AND token = '2PaXUDMpJcXTXWhuvtd7t6x1yhHzeRjwb0aDCaX1J8I=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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