Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2ee2b6999029e2f7ec9db640eff79ed43fa48b25748aba86737088e114b96d3f' 
  AND token = '/3tntyNrQMCld0Qi0/LxBwrvXQvqnnfg2SY4127Y6eQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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