Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '108130cbd7a18650578159a94d0a09d7cd089cd21dc979e339ae60a5a04ca83f' 
  AND token = 'YPLT5bXMk2jl5ovjAdxxzhkrEo0OkuPiNDL23qD/Org=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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