Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ffd7a177776659194b15ebe6f3c9e0b67b050b6e7c7046730f9d33673dac62a4' 
  AND token = 'JNJotRD22Sqs21KvvYwxePp5XRaXuvNCawqSQzo1UKk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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