Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0669d02147c3453bd0358c505d63a0c2a59b85c8d5f837ab6188da58cac8ffbf' 
  AND token = 'cAXf+YKhf0H+QjysVQsRbbQT0HFlfKhn4oDamoCMvbc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00101

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}