Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f423128da7ba25b2440f60f694a74ba0601fad15ec1a7c9a49dc72fa192939cb' 
  AND token = 'ljQzmmTl/aeoWURL43bS65WX/NOz6zAq/hBW+QAMEZc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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