Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '6464fccfca9d4af0ac3a004969cce17052d49a4b92eef9bdef94a34612deeb67' 
  AND token = 'WGaN/yyUKlBgoojbfzL0O5y3xh2p7R5IN9bf2IcBkfI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00069

JSON explain

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