Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4359e1ba375e1c0fa29c3ac4a107ea29e23743cefbfabcdaf3bd584bbf93e009' 
  AND token = 'ySvMaq5d1fAt1epSXyqfzQNzSG661+tjPwfeCguNNDU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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