Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '50e10737ceedc7d5c5078cce000695632cc684cec07f816e4175449d0b393ee0' 
  AND token = 'IqRideFp5GqtXLA4Jm3/09+Gou+FeLWayspw0LuyH3E=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00048

JSON explain

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