Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5d6dfb5270b5acf35d6f3f063d416343af87fb293ad42f06bc3aeb1734205783' 
  AND token = 'bRGlaM40hUTa7xO2kUHN+/I0jsq+jt8HhV37SdyTUF0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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