Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'fc5362e22df79cbb81b477104dab336da0d4f6ba6c61d45a946cd55d844cc887' 
  AND token = 'GpJ903tLNBNdOK+7ZApAF3nFHWJomivNZ0VfKuThyd4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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