Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0626781f953f85bbdfc7b9583c6c50a8e234c0b0159c9fbb19fc9750af479e7b' 
  AND token = 'Abx17LP8fPRzaCwJxyn9uC5RQ2uH+rsqPoZb1gkPE8E=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00056

JSON explain

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