Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'b151712c1a60a88a5b483d97d530fe4a76ce9b3f059796edbba21b292179ba39' 
  AND token = 'Zrbbs7oJP/9/w7Zp3KNabE9DaeQH10p6S+zYWBEyfVg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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