Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1a958a42b8c97db5889710f3c9db0d53623ed2582b8fbc60862ea0d9edc88429' 
  AND token = 'v6bHYR5q3VtSpjxr7GP4gK0oKOJ30GtgpRH4C12BDyE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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