Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '867949137367e808230cab9dff4454fe5674abe6bde277b1f4def706ad90e3df' 
  AND token = 'SYfcM7O+voxCQFHqBN0pmNMtdfxhO4ZTAdhL6Xta0Ww=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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