Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '46f874db169bda11eb97f906a063d751f13a83a4f553f594203c2a266c91e5eb' 
  AND token = 'qa0lxgWSG+ezCaZNSqOe7DCIrrhdJGof5hNTeOx7Et0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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