Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7522b5bc5d5f48387ad5303598830dbc4c2b58f9954f882da0b2436013048aa3' 
  AND token = 'WNHitxGHbQQ+LG9/VBC8Xn1L49vG153VXokrf3VT7Fo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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