Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f0050dede4cab2322a48ef13cc9e04dfc65b90eac393d24a08881606bebe3d86' 
  AND token = '/Gr1mspJOd1reS2UyXwycdCX8yyJGMDgcxkL0AM2ir0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00074

JSON explain

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