Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd1064f9ff55b0548ae7ec250191e7e986606fd7e8e5a50cbe940c0b6f173983a' 
  AND token = 'sHINRxre5kSJsInrb0zl7xLOVnUsZXGKqM+MleOw1m0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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