Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9fee4677300974aad638aa8d50000f18af1748614b0136d275e7f5dc1657480d' 
  AND token = 'sfTMaf/7agF2Yh03Jw+TgNqBa23vXZkusvoLoz7OAto=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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