Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '05931c8791fa23693dc97ba60111b3ee8d2ea5f783a8000d0393e871a6dbb568' 
  AND token = 'LCUJ5AoA8BcmjEZFdZpCV4l7O6hKdsVO8jCEMrbH2Is=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

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