Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '3084e58930af36b2f04f50779eed7309a914df367e294a799264c32f0a37c2a5' 
  AND token = '9vRRE/Ndw5rnrbHapa1iIhEvtxkQcyTq3JV5ei2G17k=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00048

JSON explain

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