Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '96b95ad093d6aa7f247467bfd229d4e9a7fb60d35072b21335daa2a5e059bee7' 
  AND token = 'cYA8O7VqyyZgc67n43ssht+ooJj/OS6J0a17sIu7BuM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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