Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '824d905e0fc58d12cb47dc622e55aef59879666b70e1a326b12708d595b52abd' 
  AND token = 'y4Cx+zu3eOBO9WH3mbgc6QlxLJlroNKRLhaflsD80kI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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