Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'add5c127f2ea4e5620c4f9232e0ceb2b46bcdfbf5218582409edfe973dbfeed3' 
  AND token = 'WQUygUURTYGhK4wqDiIV5wff3y0C84h8DhOQiOkb9oI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

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