Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '63f48ec266ae5a88315750c57414b2a6698d02b176fb8057d45a3a0b29dd4fd1' 
  AND token = 'Inj2SQi+mRlYoFOa4p50Pgy8YJPTUoAx+KbOJ35jHcM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00078

JSON explain

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