Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1364e725a267702e155dc5056f443ce5e27b80d26deb81ea6c450dcdf54f554f' 
  AND token = 'CDhNVNIKlwQZjEk18GwE0lIMocxSRxuvOxrCmr/O13U=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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