Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '94a7932a632457ea5b0e4e0b2f9a12992eda14773ecaae2f44d5c8702404b7eb' 
  AND token = 'Li33FXzegs1wg1IOn0Cc6NTFsp6aKC1wvutERAkJ/vI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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