Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8c674faf33c8175c637a77c5c21fbe8e7daf8cbaa67ed51a77fc4dc6a1634065' 
  AND token = 'FN1I1/tMqtiZ2mj3+/VO7F7aawCue4niST959iz0KcU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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