Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '94db132441fb70370c6b0f87e53f33580e3e85951cf9ffb18a055ace55b11ded' 
  AND token = 'awBgE4djPV8M5ttQZIsKOKDkm+7ktVxak32bjsNxqDI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00039

JSON explain

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