Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'c1bc4c0c910a63f32e907914ee5f0a340c086419c869b8e9147841bf44977863' 
  AND token = 'GnF0zgBvGiSSBQn6HzwHxX3EBYMOqPlLWMsnw+4Mt4w=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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