Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ed239e152f6f82caec0a4a05d652485f08927c60d791788d9db3b091854cae33' 
  AND token = '6gC63hTlbsC0h2Gnxab6c0VOxegqN6mQUr3phwvcchs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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