Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '026a12ed09a3bc3434506b0e00dc422545ed93928b167a07cdc600b0a61f49a5' 
  AND token = '3IrjgFAUrfFppQ6m/35HER9k2F/p3ex/92x/9nU+ELA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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