Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '09e521c39a41f5aecd4afa8e259bc71251944f8d69fa258a2e4ed33dbe805061' 
  AND token = '0ShZftTvMF3wKNf/Q8BxfAkDLv7l8R2VouJG6oBZeY8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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