Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '989e974db39fed8a309ae7d9f1565bad0f722bfbdc4a90586f3885563f6dc6bf' 
  AND token = 'fdJK672cdLsJdSpTTcedNDkHf5WQfIFAYo1KcY0CSm4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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