Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'fb062f125d7d06d738b543acd33e60d211232f1411335b884f8d47a7d9a46130' 
  AND token = 'IDjnERLzVv75WMOiX8dd0p+6bn1r14DXWog8OpMpPQ8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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