Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'eb216b2eeca2e7762fac8392fe38c75771166b72b3ad0f6bb70c5c7ec0613297' 
  AND token = 'pgt0L77MxNBuoTBFSVmKum24j4JS72Q59FUQGbkQAm4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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