Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'd079e4c16076d94ccf772f75d696180a2d1879f4132cab9de6684796ed1971a2' 
  AND token = 'zr9cz7AQuR1esFrA8MkcywtLMvHW4xyuOJFK5ivA1xU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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