Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '107f9dcdcc7a4d915430c69e77a2afdc79a9467ce6c6f852dcdeb7c15fe0bbde' 
  AND token = '4lBHI2cuc7g/hvvlYwqt/Bhj563k9I6ZrOQru3nZwZg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

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