Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '07798d2d930ced1850d99f684bbca18a6efb73c2ef0c016710a0e8bd6895d2e0' 
  AND token = 'tVGwYGhkjGsJZADcpO43+ih8T+Du77xZxzkmOxRuu58=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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