Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '3985002a523123ce310b42f479f1114bd991c35ed76b56bd1f21bc9e927e8935' 
  AND token = 'Q6LYckUJeaQOOQCA0HPkG24fm8OK1K9FLpNg22WpQ8c=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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