Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '22fc6ee7679d9984fcc797341175872dbbc544a3ba13c731a94347bf23b80992' 
  AND token = 'BQwBwN4uxnZ4IVXEXUx4IqkqLeMXcVfdFYEFuQmYsbI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00063

JSON explain

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