Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '74a116a5abda3ec9084abdfd3942e1de1b1c8a02f5171f025d4265394ea07da6' 
  AND token = 'oa/WfKMp98tF/0Rj1oeCASphRQqeqXVmcs4/Ox0vmO0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00044

JSON explain

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