Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '98170b93c24ca5ac5fde8da03b2f35911616328eef525fa96eed7c9addda6e23' 
  AND token = 'HJdDq05s+lKFZSHBsj1YY3YZQT/rvV0ROHK0UyyaeyM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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