Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '1e19b76274e3d3912b5421be69ac7b355a9789c4b716d8433ed45e7b5752419e' 
  AND token = 'IyA9aQrCJLMcZtpvboR8i7VDgdnfFHqLwO1233sS7n8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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