Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'bfa2587abe90dd00478c14548cf310ddb0a8334d2781565e292c6f89725395a8' 
  AND token = 'XgfeyvlYRIt0ed26+cbXBruWzezSImBOHWBWfa2Dyyw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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