Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4d0609c39eb1977626dd75d939520d629aa7b1f3def97292b761a962fcc75bf5' 
  AND token = 'jX4d8ebxk1YFQjCNCwnAQnZqaxe3LNETPSvOyNMm2A0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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