Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'afe22c980b935fab58439c14cc148580ab56d5c1529441eeef4f6a5669416c46' 
  AND token = 'TLjlxm2c46fVaNpeUGIGfYtQDdTQKwZ2hKJRzIsQES0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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