Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'bea74a034c6cd7c93faa5daf4b7113f7ad046e8ed3638003fb8372288b755ca1' 
  AND token = 'D0gIEEszuaCS99x12zFydaqbSobUT5SAxmO5FkGOR/s=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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