Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '3c50e6640ffb3e901e043098e89a408a4960cf5e7ac659205342b1287a09d10a' 
  AND token = 'OkU5t0j6A4IbicT/5o6JJG1sMQnezSGVE2jpWNCFZd8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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