Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '094325380981a5fb7bb9382d2a19dc91487c0a13ea1718d3cbc7d8500efe2b80' 
  AND token = 'qqc7N8iAzSECTcBlKTI37j5HA7ZVqE/3XRjQuXNbaBA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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