Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '746b914cd20a918d8ee590159b35244f8e81321a8b6837dcefb396e225a14cff' 
  AND token = '14X3Hw6EEBI0OdTdLpcm+3cI10Dtl3B6ZZ+yHyAUkXo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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