Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1207f7b1915501d0733def3d76d0c73985956de249152f91b5b741ce50c895b2' 
  AND token = 'r+Q6kA8+EQXUZDtIg4DlE+MDDXfE3uQEZOAlnf8IBgA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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