Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '07a84dcb738d7465d15c37f929daa2f4459f354c498f75bcdd290d7a07cedd80' 
  AND token = 'hDO6wxKNCDF0Esbt7se2HIZfFEMCDoaU2FAIXWFOn7g=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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