Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7805b4ce06be4ad5d02ba693da9ac78a31c2b3d25541e2488bbc65cd7c8daef8' 
  AND token = 'Fr+aiSKBcOISC0zP6J+ZONNDJKRy/S00FjVSdjWveaA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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