Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0e67fabb9c6725c1cd0f380839301f411161d768040a4cc61ab7c0e83b378909' 
  AND token = 'J9ZvBsEkxW25wYzwiaq01tm/D5hW6HF0J4BTFIdfOdo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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