Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '065f900f9b021f8994cdb663ccea9dd1cc4208ec8dbb20dc0d77a0d42ad2357a' 
  AND token = 'wspzDtLQVcZf9OHY85gmBAglwxQ2ahh0bRnNmYrrnW8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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