Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd4a86e3494d66a615924b04ef0ff7bb5999834fe5ee20402ad5c9df8b1803509' 
  AND token = '7j21+xWNp5McF1mbpmgqAYwhwvfXP/tFyuTDjAf4+dg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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