Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4b331e7652b7805338cba486feefb5a83a50d45104edced959bd9fd5608ceaf2' 
  AND token = 'pC+i3DidX6AKpoGLXY1UezM3irh9Wa/wOuP8NG52jO4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00047

JSON explain

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