Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ebf9d8819b8c0ab2e64fa67b208c6bbb903dba4efdd8707375789d07efde9a2f' 
  AND token = 'PYHWYCL3kQVjl+Uuf/v8cRSPU+/Hzt09AQd2MzLCJLw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00048

JSON explain

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