Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '182be7337759822c6d555e6be11731ddbfdafa7b15e5a581cb10fc5b9ac7d9e5' 
  AND token = 'BR8SJOTmsr5SjK5iWsBDFudPIPZFDs6Ap65WobgyP0A=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

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