Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd029b6270368a8a45a66eb8fc3f8ef6832256c836cd28069dbf49c50e859c8ca' 
  AND token = 'tulEZm2rFzeV5e9ztCnuPAsPBCcglhHXA2W9v6liMsY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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