Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '006045aca0f500efb0ddc022df65e7737092fb7d96b1faea7e2cb031fb915329' 
  AND token = 'nEMxgm3OlYgZldsRmUlNKI9TT1a8I3i4yUYohBIM8I0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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