Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'fd1c89b79bb3bb5fbaf97c4044311d1cc02ce6518e93170a0060849256eb2548' 
  AND token = '8bcfVfKxchcE219Yf6FWA2x5H5LaiWg1F+7QxiP6Znw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00208

JSON explain

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