Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8ffd7e21b870f8eefa9d86f5f7b489616b49b866f3d0d57931a7c17b0209574b' 
  AND token = 'aNKcBW4SGBEc5TDubWEhYTJxf+86N/RkNSU1dJEOWPc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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