Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '9993b56f708416742ea7caf571f62cca68bc88663ca84a9e73191382640efd1e' 
  AND token = 'aA1F5HqalGg9GDMYNEDDsKVqx/3An/gBBRG4OaOo6yE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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